Adit at top of large spoil heap. Further up valley where it branches into two are further workings. Perhaps most spectacular remains are the extant towers of the aerial ropeway.
| Year | Activity |
|---|---|
| c1720 | Mining commences |
| 1782-1802 | Main period of profitable working |
| 1870 | Cwm Buchan Silver Lead Mining Co. worked north lode |
| 1875 | Workings ceased |
| c1920s | Nantmor Copper Company Ltd. installed aerial ropeway |
| c1925 | Liquidation |
External Links
Publications (10)
- BGS - Mine Plans (large, zoomable) - Cwm Bycham Or Nanthor Mine; 1 pages
- BGS - Mine Plans (large, zoomable) - Nantmor Copper Prospect, Beddgelert Area, Caernarvonshire - Surface Plan Of Workings; 1 pages
- BGS - Mine Plans (large, zoomable) - Plan Of Nantmor Copper Workings; 1 pages
- Bick D.E. (1982); Old Copper Mines of Snowdonia, The- 1st Ed; pp. 51, 56-7
- Foster-Smith, J.R.; NMRS (1977); British Mining 4; Mines of Anglesey and Caernarvonshire, The, pp. 26
- Knowles, Jon, (2024), Llwyndu and Nantmor Copper Mines, in Newsletter of Welsh Mines Society No 91 Autumn 2024, Welsh Mines Society
- Laffoley, Nicholas d'A. and Rex, Anthony J. (1986); PDMHS (Peak District Mines Historical Society) 09-6 - Cwm Bychan or Nantmor Mine, North Wales; 6 pages (387-392)
- Lystor, Dick, (2014), The Nantmor Copper Mine, in Welsh Highland Heritage No 65 December 2014, Welsh Highland Railway Heritage Group [1]
- Mining Journal (1858); pp. 386, 408
- Rees, D. Morgan, (1968), Copper Mining in North Wales, in Archaeologia Cambrensis Vol CXVII 1968
