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Home > Mines, Quarries & Sites > Hermon Tin Mine > Photographs Of Hermon > The 32x3ft Overshot Wheel Surround, Adjacent the Sump Shaft of Whl St Just Mine, on the Foreshore of Nanven

The 32x3ft Overshot Wheel Surround, Adjacent the Sump Shaft of Whl St Just Mine, on the Foreshore of Nanven

Erected some time around 1813, this waterwheel likely tapped a low leat from Cot Valley and was fed by a steeply inclined race. Through underhand stoping of the Tollrudgen (alias "Trojan") lode from it's cliff outcrop, a remarkably rich "losange" of tin was discovered dipping seaward under the foreshore. A shaft was sunk within spitting distance of a spring tide and the wheel set in motion. The floor of orey ground was found to peter out before 30fms from surface and after driving some 400ft seaward (some reports are as much as 800ft) the project was abandoned. Carne suggested this was due to a small holing of the sea bed by cheeky tributers, however whence dewatering of the manway just inside the adit the explorers were not met with brine. It was established practice in St Just to "repair" the mistakes of those foolhardy enough to lack submarine restraint with cork, wood & tar, or even a load of turf.

This photograph is by Karl Marx and was uploaded February 19th 2019. © Karl Marx please do not copy or distribute without prior express permission.

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