Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Lower Graigola Colliery, slide
Site of the level at Graigola, near nos. 3 and 4 Main Collieries.
Pwnc
Diwydiant
Rhif yr Eitem
2017.6/1428
Mesuriadau
Meithder
(mm): 50
Lled
(mm): 50
Uchder
(mm): 3
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.