Tin Spike Mine
Hill City, South Dakota
The Tin Spike Mine is near Hill City, South Dakota. Historically the site has been associated with the Hill City Mining District which is now part of the Black Hills National Forest. The Tin Spike Mine was closed at the time of data entry with no known plans to re-open. Documentation from 1978 describes a single ore body as having a lenticular or lens shaped form reaching 30.00 meters (98.43 feet) long and 0.50 meters (1.64 feet) wide. The Black Hills of the Interior Plains characterize the geomorphology of the surrounding area.
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Other deposits in the same region.
Tin Boom Mine
Unnamed Tungsten Occurrence
Cassiterite Tin Prospect
Mohawk Tin Mine
Liberty Bell Tin Occurrence
Tin Chance Tungsten Prospect
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** The mine central point is based on an average of the mine's bounding box(es) and does not necessarily fall on the claim itself.
1 World-class significance is determined by total endowment of the contained commodity. This includes all past production and remaining reserves. Each commodity is considered separately and commodities cannot be combined to arrive at a significant size. The tonnage thresholds are from the mine model grade-tonnage studies. As of June 2008, many entries were classified as significant under less strict rules.
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TWO QUARTZ VEINS OCCUR ON THE CLAIM. CASSITERITE, WOLFRAMITE BERYL OCCUR IN THE PEGMATITE AND ONLY WOLFRAMITE IS FOUND VEINS. MINE WORKINGS CONSIST OF 2 SHAFTS (40-AND 60-FEET DEEP) AND AR NECTED BY A DRIFT 105 FEET LONG. ABOUT 100-200 TONS OF VEIN HAVE BEEN MINED FROM SHOOT IN 40-FEET SHAFT.