Hill City, South Dakota
The February Group 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. Mine operations consist of underground workings. There is one known shaft. Subsurface depth reaches a maximum of 30 meters (100 feet). The ore mined is composed of cassiterite. Associated rock in this area is pegmatite from the Neoproterozoic era 1.00 to 0.54 billion years ago. The Black Hills of the Interior Plains characterize the geomorphology of the surrounding area.
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Additional textual information about a site or mine.
SCATTERED CLAIMS IN SECTION 33 AND EXTENDING INTO SECTIONS TO THE NORTH AND WEST. CLOSE TO THE ADDIE LODE.
Formal or informal mining district names.
Workings at the site.
A 100-FOOT SHAFT IN NO. 2 LODE AND A 100-FOOT SHAFT IN ONE OF THE DIKES NEAR THE NORTH END.
Geological materials at the site.
Tectonic setting in which the site or deposit is situated.
Physiographic area where the resource is found.
Other deposits in the same region.
Gold Medal Mine
Gold Medal Group
Da Tin Prospect
Vida May Tungsten Occurrence
* Mine bounds on map indicate the general area that a mine occupies. For an detailed map, refer to the overseeing BLM field office.
** 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.
Learn more about the Bureau of Land Management, Public Land Survey System, and mining claims.
Understanding Claim Ownership
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Understanding BLM Administrative Areas
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Understanding Location Data
Mine handled by the Bureau of Land Management are not mapped by latitude and longitude, instead, these mines harken back to the Public Land Survey System.
A “township” can refer to two different things. Both are part of the PLSS measurement system but have different uses.
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SEVERAL SCATTERED CLAIMS, 7 ARE PATENTED.