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	<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Rheilffyrdd_Cul_Gogledd_Cymru</id>
	<title>Rheilffyrdd Cul Gogledd Cymru - Hanes golygu</title>
	<link rel="self" type="application/atom+xml" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Rheilffyrdd_Cul_Gogledd_Cymru"/>
	<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Rheilffyrdd_Cul_Gogledd_Cymru&amp;action=history"/>
	<updated>2026-05-06T10:55:12Z</updated>
	<subtitle>Hanes diwygio&#039;r dudalen hon ar y wici</subtitle>
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	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=8930&amp;oldid=prev</id>
		<title>Irion am 18:42, 19 Mai 2020</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=8930&amp;oldid=prev"/>
		<updated>2020-05-19T18:42:25Z</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 19:42, 19 Mai 2020&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;&amp;#039;&amp;#039;&amp;#039;Rheilffyrdd Cul Gogledd Cymru&amp;#039;&amp;#039;&amp;#039; oedd teitl crand ac uchelgeisiol y lein a agorwyd ym 1877 rhwng [[Gorsaf reilffordd Dinas|Dinas]] a [[Gorsaf reilffordd Bryngwyn|Bryngwyn]] gyda changen ar hyd Dyffryn Gwyrfai hyd at Ryd-ddu, neu &amp;#039;&amp;#039;South Snowdon&amp;#039;&amp;#039; fel y gelwid yr orsaf yno er mwyn ceisio denu cerddwyr a thwristiaid. [[Charles Easton Spooner]] oedd  peirannydd ymgynghorol y lein. Yn gychwynnol, y lein i&amp;#039;r Bryngwyn oedd y bwysicaf, gan fod yno oedd y chwareli mwyaf cynhyrchiol, ac felly mwyafrif y traffig, ond cyn hir, daeth lein y Bryngwyn i gael ei hystyried yn gangen, a&amp;#039;r lein i Waun-fawr a&amp;#039;r Rhyd-ddu yn grif lein y cwmni. Bu sôn am ymestyn i Feddgelert, Betws-y-coed a hyd yn oed Corwen ond ni ddaeth dim o&amp;#039;r breuddwydion hyn.&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;&amp;#039;&amp;#039;&amp;#039;Rheilffyrdd Cul Gogledd Cymru&amp;#039;&amp;#039;&amp;#039; oedd teitl crand ac uchelgeisiol y lein a agorwyd ym 1877 rhwng [[Gorsaf reilffordd Dinas|Dinas]] a [[Gorsaf reilffordd Bryngwyn|Bryngwyn]] gyda changen ar hyd Dyffryn Gwyrfai hyd at Ryd-ddu, neu &amp;#039;&amp;#039;South Snowdon&amp;#039;&amp;#039; fel y gelwid yr orsaf yno er mwyn ceisio denu cerddwyr a thwristiaid. [[Charles Easton Spooner]] oedd  peirannydd ymgynghorol y lein. Yn gychwynnol, y lein i&amp;#039;r Bryngwyn oedd y bwysicaf, gan fod yno oedd y chwareli mwyaf cynhyrchiol, ac felly mwyafrif y traffig, ond cyn hir, daeth lein y Bryngwyn i gael ei hystyried yn gangen, a&amp;#039;r lein i Waun-fawr a&amp;#039;r Rhyd-ddu yn grif lein y cwmni. Bu sôn am ymestyn i Feddgelert, Betws-y-coed a hyd yn oed Corwen ond ni ddaeth dim o&amp;#039;r breuddwydion hyn.&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;Roedd y cwmni mewn trafferth erbyn yr 20g, ac ataliwyd gwasanaethau rheolaidd ym 1916. Fe gymerodd cwmni newydd, [[Rheilffordd Ucheldir Cymru]], holl asedau a cherbydau&#039;r cwmni drosodd, gan ail agor ym 1923 yr holl &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fordd &lt;/del&gt;i Borthmadog - ond eto byr fu&#039;r llewyrch, ac fe gaewyd y lein ym 1937.&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;Roedd y cwmni mewn trafferth erbyn yr 20g, ac ataliwyd gwasanaethau rheolaidd ym 1916. Fe gymerodd cwmni newydd, [[Rheilffordd Ucheldir Cymru]], holl asedau a cherbydau&#039;r cwmni drosodd, gan ail agor ym 1923 yr holl &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ffordd &lt;/ins&gt;i Borthmadog - ond eto byr fu&#039;r llewyrch, ac fe gaewyd y lein ym 1937&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, wedi cyfnod yn nwylo&#039;r derbynwyr&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 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;{{eginyn}}&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;div&gt;[[Categori:Cwmnïau Rheilffyrdd]]&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;[[Categori:Cwmnïau Rheilffyrdd]]&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=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=8929&amp;oldid=prev</id>
		<title>Irion am 18:38, 19 Mai 2020</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=8929&amp;oldid=prev"/>
		<updated>2020-05-19T18:38:45Z</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 19:38, 19 Mai 2020&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;&#039;&#039;&#039;Rheilffyrdd Cul Gogledd Cymru&#039;&#039;&#039; oedd teitl crand ac uchelgeisiol y lein a agorwyd ym 1877 rhwng [[Gorsaf reilffordd Dinas|Dinas]] a [[Gorsaf reilffordd Bryngwyn|Bryngwyn]] gyda changen ar hyd Dyffryn Gwyrfai hyd at Ryd-ddu, neu &#039;&#039;South Snowdon&#039;&#039; fel y gelwid yr orsaf yno er mwyn ceisio denu cerddwyr a thwristiaid. Yn gychwynnol, y &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;lwin &lt;/del&gt;i&#039;r Bryngwyn oedd y bwysicaf, gan fod yno oedd y chwareli mwyaf cynhyrchiol, ac felly mwyafrif y traffig, ond cyn hir, daeth lein y Bryngwyn i gael ei hystyried yn gangen, a&#039;r lein i Waun-fawr a&#039;r Rhyd-ddu yn grif lein y cwmni. Bu sôn am ymestyn i Feddgelert, Betws-y-coed a hyd yn oed Corwen ond ni ddaeth dim o&#039;r breuddwydion hyn.&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;&#039;&#039;&#039;Rheilffyrdd Cul Gogledd Cymru&#039;&#039;&#039; oedd teitl crand ac uchelgeisiol y lein a agorwyd ym 1877 rhwng [[Gorsaf reilffordd Dinas|Dinas]] a [[Gorsaf reilffordd Bryngwyn|Bryngwyn]] gyda changen ar hyd Dyffryn Gwyrfai hyd at Ryd-ddu, neu &#039;&#039;South Snowdon&#039;&#039; fel y gelwid yr orsaf yno er mwyn ceisio denu cerddwyr a thwristiaid&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. [[Charles Easton Spooner]] oedd  peirannydd ymgynghorol y lein&lt;/ins&gt;. Yn gychwynnol, y &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;lein &lt;/ins&gt;i&#039;r Bryngwyn oedd y bwysicaf, gan fod yno oedd y chwareli mwyaf cynhyrchiol, ac felly mwyafrif y traffig, ond cyn hir, daeth lein y Bryngwyn i gael ei hystyried yn gangen, a&#039;r lein i Waun-fawr a&#039;r Rhyd-ddu yn grif lein y cwmni. Bu sôn am ymestyn i Feddgelert, Betws-y-coed a hyd yn oed Corwen ond ni ddaeth dim o&#039;r breuddwydion hyn.&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;Roedd y cwmni mewn trafferth erbyn yr 20g, ac ataliwyd gwasanaethau rheolaidd ym 1916. Fe gymerodd cwmni newydd, [[Rheilffordd Ucheldir Cymru]], holl asedau a cherbydau&amp;#039;r cwmni drosodd, gan ail agor ym 1923 yr holl fordd i Borthmadog - ond eto byr fu&amp;#039;r llewyrch, ac fe gaewyd y lein ym 1937.&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;Roedd y cwmni mewn trafferth erbyn yr 20g, ac ataliwyd gwasanaethau rheolaidd ym 1916. Fe gymerodd cwmni newydd, [[Rheilffordd Ucheldir Cymru]], holl asedau a cherbydau&amp;#039;r cwmni drosodd, gan ail agor ym 1923 yr holl fordd i Borthmadog - ond eto byr fu&amp;#039;r llewyrch, ac fe gaewyd y lein ym 1937.&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;[[Categori:Cwmnïau Rheilffyrdd]]&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;[[Categori:Cwmnïau Rheilffyrdd]]&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=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=829&amp;oldid=prev</id>
		<title>Irion am 17:27, 21 Tachwedd 2017</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=829&amp;oldid=prev"/>
		<updated>2017-11-21T17:27:10Z</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 18:27, 21 Tachwedd 2017&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 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;&#039;&#039;&#039;Rheilffyrdd Cul Gogledd Cymru&#039;&#039;&#039; oedd teitl crand ac uchelgeisiol y lein a agorwyd ym 1877 rhwng [[Gorsaf reilffordd Dinas|Dinas]] a [[Gorsaf reilffordd Bryngwyn|Bryngwyn]] gyda changen ar hyd Dyffryn Gwyrfai hyd at Ryd-ddu, neu &#039;&#039;South Snowdon&#039;&#039; fel y gelwid yr orsaf yno er mwyn ceisio denu cerddwyr a thwristiaid. Yn gychwynnol, y lwin i&#039;r Bryngwyn oedd y bwysicaf, gan fod yno oedd y chwareli mwyaf cynhyrchiol, ac felly mwyafrif y traffig, ond cyn hir, daeth lein y Bryngwyn i gael ei hystyried yn gangen, a&#039;r lein i Waun-fawr a&#039;r Rhyd-ddu yn grif lein y cwmni. Bu sôn am ymestyn i Feddgelert, Betws-y-coed a hyd yn oed Corwen ond ni ddaeth dim o&#039;r breuddwydion hyn.&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;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&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;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Roedd y cwmni mewn trafferth erbyn yr 20g, ac ataliwyd gwasanaethau rheolaidd ym 1916. Fe gymerodd cwmni newydd, [[Rheilffordd Ucheldir Cymru]], holl asedau a cherbydau&#039;r cwmni drosodd, gan ail agor ym 1923 yr holl fordd i Borthmadog - ond eto byr fu&#039;r llewyrch, ac fe gaewyd y lein ym 1937.&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;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&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;div&gt;[[Categori:Cwmnïau Rheilffyrdd]]&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;[[Categori:Cwmnïau Rheilffyrdd]]&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=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=604&amp;oldid=prev</id>
		<title>Irion: Symudodd Heulfryn y dudalen Rheilffordd Gul Gogledd Cymru i Rheilffyrdd Cul Gogledd Cymru heb adael dolen ailgyfeirio: Cyfieithiad cywir o&#039;r enw</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=604&amp;oldid=prev"/>
		<updated>2017-11-03T19:30:54Z</updated>

		<summary type="html">&lt;p&gt;Symudodd Heulfryn y dudalen &lt;a href=&quot;/index.php?title=Rheilffordd_Gul_Gogledd_Cymru&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Rheilffordd Gul Gogledd Cymru (nid yw&amp;#039;r dudalen yn bodoli)&quot;&gt;Rheilffordd Gul Gogledd Cymru&lt;/a&gt; i &lt;a href=&quot;/wici/Rheilffyrdd_Cul_Gogledd_Cymru&quot; title=&quot;Rheilffyrdd Cul Gogledd Cymru&quot;&gt;Rheilffyrdd Cul Gogledd Cymru&lt;/a&gt; heb adael dolen ailgyfeirio: Cyfieithiad cywir o&amp;#039;r enw&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 20:30, 3 Tachwedd 2017&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;cy&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(Dim gwahaniaeth)&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=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=45&amp;oldid=prev</id>
		<title>Carlmorris: Crëwyd tudalen newydd yn dechrau gyda &#039;Categori:Cwmnïau Rheilffyrdd&#039;</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Rheilffyrdd_Cul_Gogledd_Cymru&amp;diff=45&amp;oldid=prev"/>
		<updated>2017-09-27T14:50:01Z</updated>

		<summary type="html">&lt;p&gt;Crëwyd tudalen newydd yn dechrau gyda &amp;#039;&lt;a href=&quot;/wici/Categori:Cwmn%C3%AFau_Rheilffyrdd&quot; title=&quot;Categori:Cwmnïau Rheilffyrdd&quot;&gt;Categori:Cwmnïau Rheilffyrdd&lt;/a&gt;&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Tudalen newydd&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[Categori:Cwmnïau Rheilffyrdd]]&lt;/div&gt;</summary>
		<author><name>Carlmorris</name></author>
	</entry>
</feed>