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===Cymru===
* Siambr[[siambr Gladdugladdu Ffostyll]], [[Talgarth]], [[Brycheiniog]], [[Powys]] OSSO178349
* Siambr[[siambr Gladdugladdu Tŷ-Isaf]], Talgarth, Brycheiniog, Powys SO181290
* Siambr[[siambr Gladdugladdu Cwm Fforest]], Talgarth, Brycheiniog, Powys SO183294
* Siambr[[siambr Gladdugladdu Tŷ Illtud]], [[Llanfrynach]], Brycheiniog, Powys SO098263
* Siambr[[siambr Gladdugladdu Pen-y-Wyrlod, [[Llanigon]], Powys SO224398
* Siambr Gladdu [[siambr gladdu Mynydd Troed]], Talgarth, Powys SO161284
* Siambr[[siambr Gladdugladdu Pipton Long]], [[Bronllys]], Powys SO160372
* Siambr[[siambr Gladdugladdu Pen-y-Garn-Goch], [[Treflys]], Powys SN884502
* Siambr[[siambr Gladdugladdu Little Lodge]], [[Gwernyfed]], Powys SO182380
* Siambr[[siambr Gladdugladdu Waun Pwtlyn]], [[Llangadog]], [[Sir Gaerfyrddin]] SN708260
* Siambr[[siambr Gladdugladdu Tythegston]], [[Merthyr Mawr]], [[Pen-y-bont ar Ogwr (sir)|Pen-y-bont ar Ogwr]] SS864792
* Siambr[[siambr Gladdugladdu New House]], [[Yr Ystog]], Powys SO300973
* Siambr[[siambr Gladdugladdu Heston Brake]], [[Porth Sgiwed]], [[Sir Fynwy]] ST505886
* Siambr[[siambr Gladdugladdu Fferm Thornwell]], [[Cas-gwent]], Sir Fynwy ST539916
===Yr Alban===
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