Gwaith


Copper Mine

Worked until mid 18C

Jan 1st, 2024 from CMOS by Buddle-Bot

Sep 12th, 2024 by BertyBasset


North Wales
Nant Ffrancon
53.149395, -4.0473566
SH 6318 6332
Private Land
210m
#1,085

Adit under road, now blocked. Spoil heap with calcite, copper pyrites and other sulphides.

Geological Survey mentions 9m deep shaft at same location. Above road are grassed over trials, and further up the hill is a 30m long adit along a vein of quartz.

  • 1802 William Williams (anent to the Penrhyn Estate) in his Observations on the Snowdon states that the Parys Mine Co. has discovered “a flattering vein of copper ore” in 1782 below Cwm Graianog
  • 1925 Geological Survey recorded that no activity had taken place in over 60 years

Below road at bottom of Cwm Graianog near ruins of house called Gwaith-maen.

Publications (2)

  • (1925); BGS - Mineral Resources of GB (c1920s) Vol XXX - Copper Ores: Midlands, Lake District & N Wales; 102 pages
  • Bick, D.E. (2003); Old Copper Mines of Snowdonia, The; pp. 117

Select a theme