UK Grid Reference: SD876640
Latitude: 54°4'17"N
Longitude: 2°11'22"W
An unusual cave deposit discovered at the turn of the 19th century from an old copper mine shaft from a pothole which gave access to three caverns. These were named by Lord Ribblesdale, who commenced mining operations in the area, after their lengths in yards: the 104, the 44 and the 84.
The original entrance proved too small for the extraction of the ore, so in 1806 a shaft was sunk (GR provided) into the junction of the 104 and 44 caverns.
The smithsonite occurred as a white powder filling the bottom of the caverns and it is thought that total production was around 5000 tons.
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