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
Westminster Mine Cave - 45m
Mary Ann Shaft - 286m
Bog East - 301m
Graig Quarry - 521m
Pant y Gwlanod - 567m
Castell Engine Shaft - 649m
Llanarmon Lime Quarry - 727m
Mynydd Du - 779m
Tan y Graig Level - 901m
Llanarmon - 1,028m
Thomas Evans Shaft - 1,117m
Maes y Droell Quarry - 1,188m
Creigiog - 1,192m
Nant Engine Shaft - 1,211m
Parc - 1,423m
Blaen y Nant - 1,484m
Lot Farm Shaft Cave - 1,543m
Maes y Pwll - 1,545m
Lot Farm Shaft - 1,561m
Graianrhyd - 1,610m
Pistyll Gwyn Quarry - 1,771m
Belgrave (1) - 1,924m