Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
O.S. map of Caernarvonshire
Ordnance Survey map section (photocopy) Dorothea slate Quarry, Blaen y Cae Slate Quarry, Gallt y Fedw Slate Quarry, Pen y Bryn Slate Quarries and Tal y Sarn Slate Quarry (Nantle) Scale - 1:2500 (not dated)
Pwnc
Diwydiant
Rhif yr Eitem
88.86I/3 (21)
Historical Associations
Association Type: Slate quarries
Lle: Dorothea slate quarry
Association Type: Slate quarries
Lle: Pen-y-bryn slate quarry
Derbyniad
collected officially, 1988
Mesuriadau
Meithder
(mm): 383
Lled
(mm): 456
Deunydd
papur
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.