UK Grid Reference: SN775812
Latitude: 52°24'52"N
Longitude: 3°48'4"W
Castell mine was first recorded as being opened by Thomas Bonsall in 1785 for sphalerite. It appears to have been closed by 1803. The vein is a major fault system which has been traced for several kms, and has been exploited by a number of mines and trials along its lenth.
The next recorded working was in 1850, and was reworked on at least 11 more occations, the last opening was in 1916-17.
Recorded output:
5365 tons of zinc ore
139 tons of lead ore
25 tons of copper ore
Mineral List
18 entries listed. 15 valid minerals.
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