Great Dowgas Mine, Cornwall
St Austell: grid reference SW963514
Notable minerals: Bismuth, Bismuthinite, Cassiterite, Copper & Fluor.
Great Dowgas Mine lies about one and a half miles southeast of St. Stephen to the west of St. Austell in the St. Stephen Section of the St. Austell Mining District. Including Wheal Unanimity, it later worked with Ventonwyn Mine, Great Dowgas was mainly a tin mine that also produced sizeable amounts of cobalt. Dowgas worked Great Stopes Lode, Copper Lode, New North Lode, Woodhead's Lode and South Lode from a number of shafts. These included: Engine Shaft, Trevanian's Shaft, Western Shaft, Rhodes Shaft and Blinken's Shaft.
The tin mine under the ownership of Great Dowgas Tin Mines Ltd., produced 129 tons of black in the years 1838, 1856-1859 and 1907. It also raised 4 tons of cobalt ore in 1857. Other minerals found on the sett were Cassiterite, Hornblende, Schorl and Pyrite.
Mining historian Thomas Spargo did not have a lot to say about Great Dowgas in his 1865 's book, entitled 'Statistics and Observations on the Mines of Cornwall and Devon'. He writes simply '... Tin mine, in St. Stephens, was always a poor mine, and the works have wholly ceased, at least underground, but the sett, I believe, has not been surrendered'.
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Other nearby mines and their main ores
St Austell Consols (approx. 0.2 km; TIN, COPPER, LEAD, COBALT, NICKEL & URANIUM)
Great Hewas United (approx. 1.7 km; TIN, COPPER, LEAD & SILVER)
South Polgooth (approx. 3.0 km; TIN)
South Terras (approx. 3.1 km; PITCHBLENDE & IRON ORE)
Blencowe Consols (approx. 3.4 km; TIN)
Great Polgooth (approx. 3.7 km; TIN & COPPER)
Parka (approx. 5.5 km; TIN)
Old Beam Mine (approx. 5.5 km; TIN)
Polmear (approx. 6.9 km; COPPER & PYRITES)
Wheal Bunnie (approx. 7.2 km; TIN & WOLFRAM)