Tavistock: grid reference SX454697

Notable minerals: Antimonite, Bismuthinite, Chalcopyrite, Childrenite & Chlorite.

Situated three miles south sou'west of Tavistock and includes George and Charlotte Mine and also William and Mary Mine. George and Charlotte Mine worked Main Lode from Ley's Shaft, Emily Shaft, Crosscourse Shaft, Whim Shaft, Engine Shaft and Footway Shaft. The mine located near to Morwellham Quay is one of the best locations for Childrenite in Britain.

William & Mary Mine lies on the eastern extension of the lode worked in George and Charlotte and is separated from those mines by about 180 metres of unworked ground. William & Mary Mine worked Main Lode from Engine Shaft and Whim Shaft.

Production records report that between 1856 and 1871 - 11,705 tons of 4.75% copper ore were raised.

The 1856 Post Office Directory states that: ' Devon and Cornwall United Mine is in the township, parish, union, and hundred of Tavistock, Devon, within the bounds of the manor of Tavistock, and duchy of Cornwall, and mining district of Tavistock; it is situated 4 miles from the town of Tavistock. The nearest shipping place for ores and machinery is at New Quay, on the Tamar (in the sett) and the nearest railway station at Plymouth, 16 miles distant from the mine. The mine is held under a lease for 21 years, from 1845, at a royalty of 1-15th, granted by the Duke of Bedford, of Woburn Abbey. The country is killas, and the dip south. The nearest granite is at Hingston, 3 miles distant. There are several known lodes. The known crosscourses are two. There have been several shafts sunk. The mine is worked and drained by a steam-engine 40 h.p., and by a waterwheel 40 feet diameter and 4 feet wide. The minerals found in this sett include copper. This mine was first opened and worked under the name of George and Charlotte. It was afterwards worked by a company under the name of Devon and Cornwall United Mines. This mine is now worked for copper. The company is on the costbook system, and consists of 1,024 shares. The purser is John Ware, of Exeter; the Captain is Thomas Neal'.