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	<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Trum_y_Ddysgl</id>
	<title>Trum y Ddysgl - Hanes golygu</title>
	<link rel="self" type="application/atom+xml" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Trum_y_Ddysgl"/>
	<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Trum_y_Ddysgl&amp;action=history"/>
	<updated>2026-05-06T15:29:52Z</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=Trum_y_Ddysgl&amp;diff=13357&amp;oldid=prev</id>
		<title>Cyfaill Eben am 14:21, 7 Ebrill 2022</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Trum_y_Ddysgl&amp;diff=13357&amp;oldid=prev"/>
		<updated>2022-04-07T14:21:27Z</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 15:21, 7 Ebrill 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;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd [[Crib Nantlle]], rhwng [[Mynydd Tal-y-mignedd]] i&amp;#039;r gorllewin a [[Mynydd Drws-y-coed]] i&amp;#039;r dwyrain.  Llifa [[Afon Tal-y-mignedd]] o&amp;#039;r creigiau serth ar lethr ddwyreiniol y mynydd.&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;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd [[Crib Nantlle]], rhwng [[Mynydd Tal-y-mignedd]] i&amp;#039;r gorllewin a [[Mynydd Drws-y-coed]] i&amp;#039;r dwyrain.  Llifa [[Afon Tal-y-mignedd]] o&amp;#039;r creigiau serth ar lethr ddwyreiniol y mynydd.&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;Dosberthir copaon Cymru, a gweddill gwledydd Prydain, yn rhestrau copaon arbennig  yn ôl uchder ac yn ôl amlygrwydd y copa, gyda&#039;r rhestrau gwahanol yn deillio fel rheol o enwau&#039;r rhai a&#039;u dyfeisiodd. Mae&#039;r copa hwn yn cael ei alw&#039;n Marilyn, Hewitt a Nuttall. Mae sawl cymdeithas yn mesur, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gwiro &lt;/del&gt;a chasglu&#039;r rhestrau hyn ac fe&#039;u cyhoeddir ynghyd ar wefan “Database of British and Irish hills”.&amp;lt;ref&amp;gt;[http://www.hills-database.co.uk/downloads.html “Database of British and Irish hills”]&amp;lt;/ref&amp;gt; Uchder y copa o lefel y môr ydy 709 metr (2326 troedfedd). Cafodd yr uchder ei fesur a&#039;i gadarnhau ar 28 Hydref 2001.&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;Dosberthir copaon Cymru, a gweddill gwledydd Prydain, yn rhestrau copaon arbennig  yn ôl uchder ac yn ôl amlygrwydd y copa, gyda&#039;r rhestrau gwahanol yn deillio fel rheol o enwau&#039;r rhai a&#039;u dyfeisiodd. Mae&#039;r copa hwn yn cael ei alw&#039;n Marilyn, Hewitt a Nuttall. Mae sawl cymdeithas yn mesur, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gwirio &lt;/ins&gt;a chasglu&#039;r rhestrau hyn ac fe&#039;u cyhoeddir ynghyd ar wefan “Database of British and Irish hills”.&amp;lt;ref&amp;gt;[http://www.hills-database.co.uk/downloads.html “Database of British and Irish hills”]&amp;lt;/ref&amp;gt; Uchder y copa o lefel y môr ydy 709 metr (2326 troedfedd). Cafodd yr uchder ei fesur a&#039;i gadarnhau ar 28 Hydref 2001.&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;Mae olion tŷ crwn cynnar ychydig o dan frig y fraich serth o&amp;#039;r copa, yn wynebu&amp;#039;r dwyrain, sydd yn tystio i annedd yn uchel iawn yn y mynyddoedd. Tybed ai hafod neu gwt bugail o&amp;#039;r oesoedd cynnar ydyw, ond rhaid rhyfeddu at ei safle ddiarffordd.&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;Mae olion tŷ crwn cynnar ychydig o dan frig y fraich serth o&amp;#039;r copa, yn wynebu&amp;#039;r dwyrain, sydd yn tystio i annedd yn uchel iawn yn y mynyddoedd. Tybed ai hafod neu gwt bugail o&amp;#039;r oesoedd cynnar ydyw, ond rhaid rhyfeddu at ei safle ddiarffordd.&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=Trum_y_Ddysgl&amp;diff=10118&amp;oldid=prev</id>
		<title>Cyfaill Eben am 11:05, 1 Ionawr 2021</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Trum_y_Ddysgl&amp;diff=10118&amp;oldid=prev"/>
		<updated>2021-01-01T11:05:43Z</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 12:05, 1 Ionawr 2021&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;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd [[Crib Nantlle]], rhwng [[Mynydd Tal-y-mignedd]] i&amp;#039;r gorllewin a [[Mynydd Drws-y-coed]] i&amp;#039;r dwyrain.  Llifa [[Afon Tal-y-mignedd]] o&amp;#039;r creigiau serth ar lethr ddwyreiniol y mynydd.&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;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd [[Crib Nantlle]], rhwng [[Mynydd Tal-y-mignedd]] i&amp;#039;r gorllewin a [[Mynydd Drws-y-coed]] i&amp;#039;r dwyrain.  Llifa [[Afon Tal-y-mignedd]] o&amp;#039;r creigiau serth ar lethr ddwyreiniol y mynydd.&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;Dosberthir copaon Cymru, a gweddill gwledydd Prydain, yn &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rhestri &lt;/del&gt;copaon arbennig  yn ôl uchder ac yn ôl amlygrwydd y copa, gyda&#039;r rhestrau gwahanol yn deillio fel &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;arfer &lt;/del&gt;o enwau&#039;r rhai a&#039;u dyfeisiodd. Mae&#039;r copa hwn yn cael ei alw&#039;n Marilyn, Hewitt a Nuttall. Mae sawl cymdeithas yn mesur, gwiro a chasglu&#039;r &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rhestri &lt;/del&gt;hyn &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a dônt ynghŷd &lt;/del&gt;ar wefan “Database of British and Irish hills”.&amp;lt;ref&amp;gt;[http://www.hills-database.co.uk/downloads.html “Database of British and Irish hills”]&amp;lt;/ref&amp;gt; Uchder y copa o lefel y môr ydy 709 metr (2326 troedfedd). Cafodd yr uchder ei fesur a&#039;i gadarnhau ar 28 Hydref 2001.&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;Dosberthir copaon Cymru, a gweddill gwledydd Prydain, yn &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rhestrau &lt;/ins&gt;copaon arbennig  yn ôl uchder ac yn ôl amlygrwydd y copa, gyda&#039;r rhestrau gwahanol yn deillio fel &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rheol &lt;/ins&gt;o enwau&#039;r rhai a&#039;u dyfeisiodd. Mae&#039;r copa hwn yn cael ei alw&#039;n Marilyn, Hewitt a Nuttall. Mae sawl cymdeithas yn mesur, gwiro a chasglu&#039;r &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rhestrau &lt;/ins&gt;hyn &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ac fe&#039;u cyhoeddir ynghyd &lt;/ins&gt;ar wefan “Database of British and Irish hills”.&amp;lt;ref&amp;gt;[http://www.hills-database.co.uk/downloads.html “Database of British and Irish hills”]&amp;lt;/ref&amp;gt; Uchder y copa o lefel y môr ydy 709 metr (2326 troedfedd). Cafodd yr uchder ei fesur a&#039;i gadarnhau ar 28 Hydref 2001.&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;Mae olion tŷ crwn cynnar ychydig o dan &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;brig &lt;/del&gt;y fraich serth o&#039;r copa, yn wynebu&#039;r dwyrain, sydd yn tystio i annedd yn uchel iawn yn y mynyddoedd. Tybed ai hafod neu gwt bugail o&#039;r oesoedd cynnar ydyw, ond rhaid rhyfeddu at ei safle ddiarffordd.&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;Mae olion tŷ crwn cynnar ychydig o dan &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;frig &lt;/ins&gt;y fraich serth o&#039;r copa, yn wynebu&#039;r dwyrain, sydd yn tystio i annedd yn uchel iawn yn y mynyddoedd. Tybed ai hafod neu gwt bugail o&#039;r oesoedd cynnar ydyw, ond rhaid rhyfeddu at ei safle ddiarffordd.&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>Cyfaill Eben</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Trum_y_Ddysgl&amp;diff=10067&amp;oldid=prev</id>
		<title>Irion am 20:39, 29 Rhagfyr 2020</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Trum_y_Ddysgl&amp;diff=10067&amp;oldid=prev"/>
		<updated>2020-12-29T20:39:13Z</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 21:39, 29 Rhagfyr 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-l4&quot;&gt;Llinell 4:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 4:&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;Dosberthir copaon Cymru, a gweddill gwledydd Prydain, yn rhestri copaon arbennig  yn ôl uchder ac yn ôl amlygrwydd y copa, gyda&amp;#039;r rhestrau gwahanol yn deillio fel arfer o enwau&amp;#039;r rhai a&amp;#039;u dyfeisiodd. Mae&amp;#039;r copa hwn yn cael ei alw&amp;#039;n Marilyn, Hewitt a Nuttall. Mae sawl cymdeithas yn mesur, gwiro a chasglu&amp;#039;r rhestri hyn a dônt ynghŷd ar wefan “Database of British and Irish hills”.&amp;lt;ref&amp;gt;[http://www.hills-database.co.uk/downloads.html “Database of British and Irish hills”]&amp;lt;/ref&amp;gt; Uchder y copa o lefel y môr ydy 709 metr (2326 troedfedd). Cafodd yr uchder ei fesur a&amp;#039;i gadarnhau ar 28 Hydref 2001.&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;Dosberthir copaon Cymru, a gweddill gwledydd Prydain, yn rhestri copaon arbennig  yn ôl uchder ac yn ôl amlygrwydd y copa, gyda&amp;#039;r rhestrau gwahanol yn deillio fel arfer o enwau&amp;#039;r rhai a&amp;#039;u dyfeisiodd. Mae&amp;#039;r copa hwn yn cael ei alw&amp;#039;n Marilyn, Hewitt a Nuttall. Mae sawl cymdeithas yn mesur, gwiro a chasglu&amp;#039;r rhestri hyn a dônt ynghŷd ar wefan “Database of British and Irish hills”.&amp;lt;ref&amp;gt;[http://www.hills-database.co.uk/downloads.html “Database of British and Irish hills”]&amp;lt;/ref&amp;gt; Uchder y copa o lefel y môr ydy 709 metr (2326 troedfedd). Cafodd yr uchder ei fesur a&amp;#039;i gadarnhau ar 28 Hydref 2001.&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;Mae olion tŷ crwn cynnar ychydig o dan brig y fraich serth o&#039;r copa, yn wynebu&#039;r dwyrain, sydd yn tystio i annedd yn uchel iawn yn y mynyddoedd. Tybed ai hafod neu gwt bugail o&#039;r oesoedd cynnar ydyw, ond rhaid rhyfeddu at ei safle ddiarffordd.&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;  {{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=Trum_y_Ddysgl&amp;diff=10066&amp;oldid=prev</id>
		<title>Irion am 20:30, 29 Rhagfyr 2020</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Trum_y_Ddysgl&amp;diff=10066&amp;oldid=prev"/>
		<updated>2020-12-29T20:30:42Z</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 21:30, 29 Rhagfyr 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;[[File:Trum22.jpg|de|bawd|400px|Trum-y-ddysgl o Fynydd Drws-y-coed. Llun:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Gabbt77&lt;/del&gt;, Wicipedia]]&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;[[File:Trum22.jpg|de|bawd|400px|Trum-y-ddysgl o Fynydd Drws-y-coed. Llun:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Gabby77&lt;/ins&gt;, Wicipedia]]&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;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd [[Crib Nantlle]], rhwng [[Mynydd Tal-y-mignedd]] i&amp;#039;r gorllewin a [[Mynydd Drws-y-coed]] i&amp;#039;r dwyrain.  Llifa [[Afon Tal-y-mignedd]] o&amp;#039;r creigiau serth ar lethr ddwyreiniol y mynydd.&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;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd [[Crib Nantlle]], rhwng [[Mynydd Tal-y-mignedd]] i&amp;#039;r gorllewin a [[Mynydd Drws-y-coed]] i&amp;#039;r dwyrain.  Llifa [[Afon Tal-y-mignedd]] o&amp;#039;r creigiau serth ar lethr ddwyreiniol y mynydd.&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=Trum_y_Ddysgl&amp;diff=10065&amp;oldid=prev</id>
		<title>Irion am 20:30, 29 Rhagfyr 2020</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Trum_y_Ddysgl&amp;diff=10065&amp;oldid=prev"/>
		<updated>2020-12-29T20:30:22Z</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 21:30, 29 Rhagfyr 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 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;[[File:Trum22.jpg|de|bawd|400px|Trum-y-ddysgl o Fynydd Drws-y-coed. Llun:Gabbt77, Wicipedia]]&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;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd [[Crib Nantlle]], rhwng [[Mynydd Tal-y-mignedd]] i&amp;#039;r gorllewin a [[Mynydd Drws-y-coed]] i&amp;#039;r dwyrain.  Llifa [[Afon Tal-y-mignedd]] o&amp;#039;r creigiau serth ar lethr ddwyreiniol y mynydd.&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;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd [[Crib Nantlle]], rhwng [[Mynydd Tal-y-mignedd]] i&amp;#039;r gorllewin a [[Mynydd Drws-y-coed]] i&amp;#039;r dwyrain.  Llifa [[Afon Tal-y-mignedd]] o&amp;#039;r creigiau serth ar lethr ddwyreiniol y mynydd.&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;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Trum_y_Ddysgl&amp;diff=10064&amp;oldid=prev</id>
		<title>Irion: Crëwyd tudalen newydd yn dechrau gyda &#039;Mae &#039;&#039;&#039;Trum-y-ddysgl&#039;&#039;&#039; yn un o fynyddoedd Crib Nantlle, rhwng Mynydd Tal-y-mignedd i&#039;r gorllewin a Mynydd Drws-y-coed i&#039;r dwyrain.  Llifa A...&#039;</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Trum_y_Ddysgl&amp;diff=10064&amp;oldid=prev"/>
		<updated>2020-12-29T20:27:05Z</updated>

		<summary type="html">&lt;p&gt;Crëwyd tudalen newydd yn dechrau gyda &amp;#039;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd &lt;a href=&quot;/wici/Crib_Nantlle&quot; title=&quot;Crib Nantlle&quot;&gt;Crib Nantlle&lt;/a&gt;, rhwng &lt;a href=&quot;/wici/Mynydd_Tal-y-mignedd&quot; title=&quot;Mynydd Tal-y-mignedd&quot;&gt;Mynydd Tal-y-mignedd&lt;/a&gt; i&amp;#039;r gorllewin a &lt;a href=&quot;/wici/Mynydd_Drws-y-coed&quot; title=&quot;Mynydd Drws-y-coed&quot;&gt;Mynydd Drws-y-coed&lt;/a&gt; i&amp;#039;r dwyrain.  Llifa A...&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Tudalen newydd&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Mae &amp;#039;&amp;#039;&amp;#039;Trum-y-ddysgl&amp;#039;&amp;#039;&amp;#039; yn un o fynyddoedd [[Crib Nantlle]], rhwng [[Mynydd Tal-y-mignedd]] i&amp;#039;r gorllewin a [[Mynydd Drws-y-coed]] i&amp;#039;r dwyrain.  Llifa [[Afon Tal-y-mignedd]] o&amp;#039;r creigiau serth ar lethr ddwyreiniol y mynydd.&lt;br /&gt;
&lt;br /&gt;
Dosberthir copaon Cymru, a gweddill gwledydd Prydain, yn rhestri copaon arbennig  yn ôl uchder ac yn ôl amlygrwydd y copa, gyda&amp;#039;r rhestrau gwahanol yn deillio fel arfer o enwau&amp;#039;r rhai a&amp;#039;u dyfeisiodd. Mae&amp;#039;r copa hwn yn cael ei alw&amp;#039;n Marilyn, Hewitt a Nuttall. Mae sawl cymdeithas yn mesur, gwiro a chasglu&amp;#039;r rhestri hyn a dônt ynghŷd ar wefan “Database of British and Irish hills”.&amp;lt;ref&amp;gt;[http://www.hills-database.co.uk/downloads.html “Database of British and Irish hills”]&amp;lt;/ref&amp;gt; Uchder y copa o lefel y môr ydy 709 metr (2326 troedfedd). Cafodd yr uchder ei fesur a&amp;#039;i gadarnhau ar 28 Hydref 2001.&lt;br /&gt;
&lt;br /&gt;
 {{eginyn}}&lt;br /&gt;
==Cyfeiriadau==&lt;br /&gt;
{{cyfeiriadau}}&lt;br /&gt;
[[Categori:Mynyddoedd]]&lt;/div&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
</feed>