Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'

Pwll Du Coal Pits

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NPRN85862
Cyfeirnod MapSO21SE
Cyfeirnod GridSO2522010900
Awdurdod Unedol (Lleol)Sir Fynwy
Hen SirSir Fynwy
CymunedLlanfoist Fawr
Math O SaflePWLL CLOCH
CyfnodÔl-Ganoloesol
Disgrifiad
A group of bellpits worked for both coal and ironstone over an area that covers approximately 500m from north-west to south-east, by 120m. Bell pits are a simple form of extraction used where the coal and ironstone lie close to the surface and probably represent relatively early activity in the area.

B.A. Malaws, RCAHMW, 10 March 1999.