Deep tunnel draining Westminster and Pant-y-Gwlanod veins.
External Links
Publications (2)
- (1921); BGS - Mineral Resources of GB (c1920s) Vol XIX - Lead and Zinc: in Carboniferous of North Wales; 169 pages
- Ebbs, Cris (2009); Lead Mining at Eryrys & Llanarmon; 17 pages
Pistyll Gwyn Quarry - 515m
Belgrave (2) - 1,039m
Brynalyn - 1,048m
Nant Engine Shaft - 1,064m
Lot Farm Shaft - 1,109m
Lot Farm Shaft Cave - 1,127m
Blaen y Nant - 1,196m
Thomas Evans Shaft - 1,450m
Llanarmon Lime Quarry - 1,503m
Bryn yr Orsedd - 1,508m
Brynyrorsedd High Level - 1,513m
Brynyrorsedd Low Level - 1,548m
Castell Engine Shaft - 1,594m
Tan y Graig Level - 1,648m
Belgrave (1) - 1,664m
Pant y Gwlanod - 1,702m
Pothole Quarry - 1,730m