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	<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Chwarel_Greenarvon</id>
	<title>Chwarel Greenarvon - Hanes golygu</title>
	<link rel="self" type="application/atom+xml" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Chwarel_Greenarvon"/>
	<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;action=history"/>
	<updated>2026-05-16T09:30:48Z</updated>
	<subtitle>Hanes diwygio&#039;r dudalen hon ar y wici</subtitle>
	<generator>MediaWiki 1.43.1</generator>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=14277&amp;oldid=prev</id>
		<title>Irion am 15:01, 6 Rhagfyr 2022</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=14277&amp;oldid=prev"/>
		<updated>2022-12-06T15:01:57Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 16:01, 6 Rhagfyr 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l3&quot;&gt;Llinell 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddid tramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&amp;#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddid tramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&amp;#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dichon mai&#039;r chwarel a alwyd gynt yn Chwarel Llwydcoed Bach ydoedd. Yn sicr, fe ailagorwyd y chwarel ym 1907, gyda&#039;r disgwyliad y byddai&#039;r llechi&#039;n bur werthadwy.&amp;lt;ref&amp;gt;&#039;&#039;Yr Herald Cymraeg&#039;&#039;, 25.6.1907, t.8&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Dichon mai&#039;r chwarel a alwyd gynt yn Chwarel Llwydcoed Bach ydoedd. Yn sicr, fe ailagorwyd y chwarel ym 1907, gyda&#039;r disgwyliad y byddai&#039;r llechi&#039;n bur werthadwy.&amp;lt;ref&amp;gt;&#039;&#039;Yr Herald Cymraeg&#039;&#039;, 25.6.1907, t.8&amp;lt;/ref&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Sylwer mai chwarel arall, gydag enw tebyg, oedd [[Chwarel Llwyd-y-coed]] a alwyd yn aml yn Twll (neu Chwarel) Eureka ac aeth yn un o bedwar twll mawr [[Chwarel Pen-yr-orsedd]] yn y man.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ym 1913, y Welsh Green Slate Quarries Company Ltd. o Gaernarfon oedd yn rhedeg y chwarel ac yn gwerthu&amp;#039;r llechi, a ddisgrifiwyd ar daflen brisiau&amp;#039;r cwmni fel rhai gwyrdd a rhai &amp;quot;rustic&amp;quot; (sef mwy amrwd neu gymysgliw).&amp;lt;ref&amp;gt;Amgueddfa Genedlaethol Cymru, eitem 2010.5/17&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ym 1913, y Welsh Green Slate Quarries Company Ltd. o Gaernarfon oedd yn rhedeg y chwarel ac yn gwerthu&amp;#039;r llechi, a ddisgrifiwyd ar daflen brisiau&amp;#039;r cwmni fel rhai gwyrdd a rhai &amp;quot;rustic&amp;quot; (sef mwy amrwd neu gymysgliw).&amp;lt;ref&amp;gt;Amgueddfa Genedlaethol Cymru, eitem 2010.5/17&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=14275&amp;oldid=prev</id>
		<title>Irion am 14:42, 6 Rhagfyr 2022</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=14275&amp;oldid=prev"/>
		<updated>2022-12-06T14:42:14Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 15:42, 6 Rhagfyr 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &#039;&#039;&#039;Chwarel Greenarvon&#039;&#039;&#039; (SH 469508). Chwarel un twll ydoedd. Mae olion y chwarel i&#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &#039;&#039;&#039;Chwarel Greenarvon&#039;&#039;&#039; (SH 469508). Chwarel un twll ydoedd. Mae olion y chwarel i&#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddid tramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&amp;lt;/ref&amp;gt; Roedd hi&#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries, sy&#039;n cynnwys y chwarel hon, ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39&lt;/del&gt;.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddid tramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ym 1913, y Welsh Green Slate Quarries Company Ltd. o Gaernarfon oedd yn rhedeg y chwarel ac yn gwerthu&#039;r llechi, a ddisgrifiwyd ar daflen brisiau&#039;r cwmni fel rhai gwyrdd a rhai &quot;rustic&quot; (sef mwy amrwd neu gymysgliw).&amp;lt;ref&amp;gt;Amgueddfa Genedlaethol Cymru, eitem 2010.5/17&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Dichon mai&#039;r chwarel a alwyd gynt yn Chwarel Llwydcoed Bach ydoedd. Yn sicr, fe ailagorwyd y chwarel ym 1907, gyda&#039;r disgwyliad y byddai&#039;r llechi&#039;n bur werthadwy.&amp;lt;ref&amp;gt;&#039;&#039;Yr Herald Cymraeg&#039;&#039;, 25.6.1907, t.8&amp;lt;/ref&amp;gt; &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ym 1913, y Welsh Green Slate Quarries Company Ltd. o Gaernarfon oedd yn rhedeg y chwarel ac yn gwerthu&#039;r llechi, a ddisgrifiwyd ar daflen brisiau&#039;r cwmni fel rhai gwyrdd a rhai &quot;rustic&quot; (sef mwy amrwd neu gymysgliw).&amp;lt;ref&amp;gt;Amgueddfa Genedlaethol Cymru, eitem 2010.5/17&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/ref&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Roedd hi&#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries, sy&#039;n cynnwys y chwarel hon, ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&lt;/ins&gt;&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwmni Greenarvon Slate Quarry Cyf. i ben ym 1938.&amp;lt;ref&amp;gt;&amp;#039;&amp;#039;London Gazette&amp;#039;&amp;#039;, 25 Tachwedd 1938, t.7441.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwmni Greenarvon Slate Quarry Cyf. i ben ym 1938.&amp;lt;ref&amp;gt;&amp;#039;&amp;#039;London Gazette&amp;#039;&amp;#039;, 25 Tachwedd 1938, t.7441.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=12971&amp;oldid=prev</id>
		<title>Cyfaill Eben am 16:01, 20 Chwefror 2022</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=12971&amp;oldid=prev"/>
		<updated>2022-02-20T16:01:35Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 17:01, 20 Chwefror 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &amp;#039;&amp;#039;&amp;#039;Chwarel Greenarvon&amp;#039;&amp;#039;&amp;#039; (SH 469508). Chwarel un twll ydoedd. Mae olion y chwarel i&amp;#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&amp;#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &amp;#039;&amp;#039;&amp;#039;Chwarel Greenarvon&amp;#039;&amp;#039;&amp;#039; (SH 469508). Chwarel un twll ydoedd. Mae olion y chwarel i&amp;#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&amp;#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddid tramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddid tramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;sy&#039;n cynnwys y chwarel hon&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ym 1913, y Welsh Green Slate Quarries Company Ltd. o Gaernarfon oedd yn rhedeg y chwarel ac yn gwerthu&amp;#039;r llechi, a ddisgrifiwyd ar daflen brisiau&amp;#039;r cwmni fel rhai gwyrdd a rhai &amp;quot;rustic&amp;quot; (sef mwy amrwd neu gymysgliw).&amp;lt;ref&amp;gt;Amgueddfa Genedlaethol Cymru, eitem 2010.5/17&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ym 1913, y Welsh Green Slate Quarries Company Ltd. o Gaernarfon oedd yn rhedeg y chwarel ac yn gwerthu&amp;#039;r llechi, a ddisgrifiwyd ar daflen brisiau&amp;#039;r cwmni fel rhai gwyrdd a rhai &amp;quot;rustic&amp;quot; (sef mwy amrwd neu gymysgliw).&amp;lt;ref&amp;gt;Amgueddfa Genedlaethol Cymru, eitem 2010.5/17&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Cyfaill Eben</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=12948&amp;oldid=prev</id>
		<title>Irion am 13:47, 18 Chwefror 2022</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=12948&amp;oldid=prev"/>
		<updated>2022-02-18T13:47:04Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 14:47, 18 Chwefror 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l3&quot;&gt;Llinell 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddid tramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&amp;#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&amp;#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&amp;#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddid tramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&amp;#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&amp;#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&amp;#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ym 1913, y Welsh Green Slate Quarries Company Ltd. o Gaernarfon oedd yn rhedeg y chwarel ac yn gwerthu&#039;r llechi, a ddisgrifiwyd ar daflen brisiau&#039;r cwmni fel rhai gwyrdd a rhai &quot;rustic&quot; (sef mwy amrwd neu gymysgliw).&amp;lt;ref&amp;gt;Amgueddfa &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Genedlaewthol &lt;/del&gt;Cymru, eitem 2010.5/17&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ym 1913, y Welsh Green Slate Quarries Company Ltd. o Gaernarfon oedd yn rhedeg y chwarel ac yn gwerthu&#039;r llechi, a ddisgrifiwyd ar daflen brisiau&#039;r cwmni fel rhai gwyrdd a rhai &quot;rustic&quot; (sef mwy amrwd neu gymysgliw).&amp;lt;ref&amp;gt;Amgueddfa &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Genedlaethol &lt;/ins&gt;Cymru, eitem 2010.5/17&amp;lt;/ref&amp;gt;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwmni Greenarvon Slate Quarry Cyf. i ben ym 1938.&amp;lt;ref&amp;gt;&amp;#039;&amp;#039;London Gazette&amp;#039;&amp;#039;, 25 Tachwedd 1938, t.7441.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwmni Greenarvon Slate Quarry Cyf. i ben ym 1938.&amp;lt;ref&amp;gt;&amp;#039;&amp;#039;London Gazette&amp;#039;&amp;#039;, 25 Tachwedd 1938, t.7441.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=12947&amp;oldid=prev</id>
		<title>Irion am 10:56, 18 Chwefror 2022</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=12947&amp;oldid=prev"/>
		<updated>2022-02-18T10:56:52Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 11:56, 18 Chwefror 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &#039;&#039;&#039;Chwarel Greenarvon&#039;&#039;&#039; (SH 469508). &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Chwqarel &lt;/del&gt;un twll ydoedd. Mae olion y chwarel i&#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &#039;&#039;&#039;Chwarel Greenarvon&#039;&#039;&#039; (SH 469508). &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Chwarel &lt;/ins&gt;un twll ydoedd. Mae olion y chwarel i&#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Defnyddiai dramffordd &lt;/del&gt;fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&amp;lt;/ref&amp;gt; Daeth cwmni Greenarvon Slate Quarry Cyf. i ben ym 1938.&amp;lt;ref&amp;gt;&#039;&#039;London Gazette&#039;&#039;, 25 Tachwedd 1938, t.7441.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Defnyddid tramffordd &lt;/ins&gt;fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ym 1913, y Welsh Green Slate Quarries Company Ltd. o Gaernarfon oedd yn rhedeg y chwarel ac yn gwerthu&#039;r llechi, a ddisgrifiwyd ar daflen brisiau&#039;r cwmni fel rhai gwyrdd a rhai &quot;rustic&quot; (sef mwy amrwd neu gymysgliw).&amp;lt;ref&amp;gt;Amgueddfa Genedlaewthol Cymru, eitem 2010.5/17&amp;lt;/ref&amp;gt; &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Daeth cwmni Greenarvon Slate Quarry Cyf. i ben ym 1938.&amp;lt;ref&amp;gt;&#039;&#039;London Gazette&#039;&#039;, 25 Tachwedd 1938, t.7441.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4847&amp;oldid=prev</id>
		<title>Robingoch am 17:26, 26 Tachwedd 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4847&amp;oldid=prev"/>
		<updated>2018-11-26T17:26:58Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 18:26, 26 Tachwedd 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &#039;&#039;Chwarel Greenarvon&#039;&#039; (SH 469508). Chwqarel un twll ydoedd. Mae olion y chwarel i&#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&lt;/ins&gt;&#039;&#039;Chwarel Greenarvon&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&lt;/ins&gt;&#039;&#039; (SH 469508). Chwqarel un twll ydoedd. Mae olion y chwarel i&#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddiai dramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&amp;#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&amp;#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&amp;#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&amp;lt;/ref&amp;gt; Daeth cwmni Greenarvon Slate Quarry Cyf. i ben ym 1938.&amp;lt;ref&amp;gt;&amp;#039;&amp;#039;London Gazette&amp;#039;&amp;#039;, 25 Tachwedd 1938, t.7441.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddiai dramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&amp;#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&amp;#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&amp;#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&amp;lt;/ref&amp;gt; Daeth cwmni Greenarvon Slate Quarry Cyf. i ben ym 1938.&amp;lt;ref&amp;gt;&amp;#039;&amp;#039;London Gazette&amp;#039;&amp;#039;, 25 Tachwedd 1938, t.7441.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Robingoch</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4846&amp;oldid=prev</id>
		<title>Robingoch am 17:25, 26 Tachwedd 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4846&amp;oldid=prev"/>
		<updated>2018-11-26T17:25:50Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 18:25, 26 Tachwedd 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &#039;&#039;Chwarel Greenarvon&#039;&#039;. Chwqarel un twll ydoedd. Mae olion y chwarel i&#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &#039;&#039;Chwarel Greenarvon&#039;&#039; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(SH 469508)&lt;/ins&gt;. Chwqarel un twll ydoedd. Mae olion y chwarel i&#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddiai dramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddiai dramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt; Roedd hi&#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&amp;lt;/ref&amp;gt; Daeth cwmni Greenarvon Slate Quarry Cyf. i ben ym 1938.&amp;lt;ref&amp;gt;&#039;&#039;London Gazette&#039;&#039;, 25 Tachwedd 1938, t.7441&lt;/ins&gt;.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Robingoch</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4845&amp;oldid=prev</id>
		<title>Robingoch am 17:21, 26 Tachwedd 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4845&amp;oldid=prev"/>
		<updated>2018-11-26T17:21:36Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 18:21, 26 Tachwedd 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &amp;#039;&amp;#039;Chwarel Greenarvon&amp;#039;&amp;#039;. Chwqarel un twll ydoedd. Mae olion y chwarel i&amp;#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&amp;#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &amp;#039;&amp;#039;Chwarel Greenarvon&amp;#039;&amp;#039;. Chwqarel un twll ydoedd. Mae olion y chwarel i&amp;#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&amp;#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddiai dramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddiai dramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&#039;r map Ordnans cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyweinwyd oddi ar fapiau Ordnans&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&amp;lt;/ref&amp;gt; Roedd hi&#039;n dal i weithredu ym 1920, gan fod adroddiad rheolwr Amalgamated Slate Association Quarries sy&#039;n cynnwys y chwarel hon ar gael.&amp;lt;ref&amp;gt;Archifdy Gwynedd, XD94/39&lt;/ins&gt;.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Robingoch</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4844&amp;oldid=prev</id>
		<title>Robingoch am 17:17, 26 Tachwedd 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4844&amp;oldid=prev"/>
		<updated>2018-11-26T17:17:56Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 18:17, 26 Tachwedd 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &amp;#039;&amp;#039;Chwarel Greenarvon&amp;#039;&amp;#039;. Chwqarel un twll ydoedd. Mae olion y chwarel i&amp;#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&amp;#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &amp;#039;&amp;#039;Chwarel Greenarvon&amp;#039;&amp;#039;. Chwqarel un twll ydoedd. Mae olion y chwarel i&amp;#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&amp;#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddiai dramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae map Ordnans &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yn1900 &lt;/del&gt;yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gyeweinwyd &lt;/del&gt;oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Defnyddiai dramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;r &lt;/ins&gt;map Ordnans &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cyntaf ar raddfa fawr (1888) yn dangos chwarel yno, gyda thramffordd ar hyd y domen. Mae map Ordnans dyddiedig 1900 &lt;/ins&gt;yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gyweinwyd &lt;/ins&gt;oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Robingoch</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4843&amp;oldid=prev</id>
		<title>Robingoch: Crëwyd tudalen newydd yn dechrau gyda &#039;Chwarel lechi weddol fach oedd &#039;&#039;Chwarel Greenarvon&#039;&#039;. Chwqarel un twll ydoedd. Mae olion y chwarel i&#039;r de o fferm Llwydcoed Bach nid nepell o Afon Cryc...&#039;</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Greenarvon&amp;diff=4843&amp;oldid=prev"/>
		<updated>2018-11-26T17:15:02Z</updated>

		<summary type="html">&lt;p&gt;Crëwyd tudalen newydd yn dechrau gyda &amp;#039;Chwarel lechi weddol fach oedd &amp;#039;&amp;#039;Chwarel Greenarvon&amp;#039;&amp;#039;. Chwqarel un twll ydoedd. Mae olion y chwarel i&amp;#039;r de o fferm Llwydcoed Bach nid nepell o Afon Cryc...&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Tudalen newydd&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Chwarel lechi weddol fach oedd &amp;#039;&amp;#039;Chwarel Greenarvon&amp;#039;&amp;#039;. Chwqarel un twll ydoedd. Mae olion y chwarel i&amp;#039;r de o fferm Llwydcoed Bach nid nepell o [[Afon Crychddwr]] ar gyrion [[Nasareth]], ychydig i&amp;#039;r gogledd o dai Pen-y-chwarel ar ffordd [[Pont Lloc]].&lt;br /&gt;
&lt;br /&gt;
Defnyddiai dramffordd fach o fewn y chwarel ac roedd melin lechi yno i drin cynnyrch y chwarel. Mae map Ordnans yn1900 yn ei dangos fel hen chwarel wedi cau, ond mae map a addaswyd ym 1914 yn dangos adeiladau newydd ac awgrymir ei bod ar waith.&amp;lt;ref&amp;gt;Gwybodaeth a gyeweinwyd oddi ar fapiau Ordnans.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{{eginyn}}&lt;br /&gt;
==Cyfeiriadau==&lt;br /&gt;
{{cyfeiriadau}}&lt;br /&gt;
[[Categori:Chwareli llechi]]&lt;/div&gt;</summary>
		<author><name>Robingoch</name></author>
	</entry>
</feed>