Great Wheal Fortune mine was active from 1855 to 1880, with a total output of 2,992 tons of tin, 322 tons of copper, as well as some tungsten and arsenic. This mine worked lodes in the valley near Trelissick and Carnmeal Downs. Ref.: Rocks & Min.: 19:8; B. Atkinson: Mining Sites in Cornwall, Vol. 2, Dyllansow Truran (1994)
Kellys Directory Entry. "Is in the parish of Breage, 3 miles from Helston and Porthleven, the nearest shipping port, and 6 from Hayle and Camborne, the nearest railway station. It is worked for tin by a company, on the costbook system, in 100 shares, and held under a 21 years lease from 1872, granted by the Rev Prebendary FORD, and E B TUCKER esq., at a royalty of 1-24th. The country is killas, and there are several lodes bearing east and west in the sett. There is a 32 inch cylinder steam engine for pumping and stamping; it has 32 heads of stamps attached. A water wheel with 8 heads of stamps a Stephen's patent pulverizer, and appliances for tin dressing. The present average is about 7lbs of tin to the ton of stuff. Purser William ARGALL. Manger and Chief Agent Stephen HARRIS "
There has been large opencast working on series of lodes known as Conquer Branches.
Wendron Mining District