Cowboy Tin Mine
Hill City, South Dakota
43.9277°N 103.5977°W
Mine Overview
The Cowboy Tin 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 site was first discovered in 1884. The Cowboy Tin Mine was closed at the time of data entry with no known plans to re-open. Mine operations consist of underground workings. Underground features include 2 shafts and 1 incline. Subsurface depth reaches a maximum of 61 meters (200 feet) and extends 2,000 meters (6,562 feet) in length. The mining method is shrinkage methods. Documentation from 1981 describes a single ore body as having a lenticular or lens shaped form reaching 46 meters (150 feet) long, 1 meter (2 feet) wide, and 61 meters (200 feet) thick. The Black Hills of the Interior Plains characterize the geomorphology of the surrounding area.
Commodities
Additional textual information about a site or mine.
- Commodity Type Importance
- Beryllium Metallic Tertiary
- Mica Non-Metallic Tertiary
- Tin Metallic Tertiary
Location Info
- Pennington , South Dakota County / State
- Continent Country State County
- North America The United States South Dakota Pennington
Workings
Workings at the site.
Underground Workings #1
- Type: Underground
- Sub Surface Length: 2000 Meters
- Sub Surface Depth: 61 Meters
- Mining Method: Shrinkage Methods
- Year of Information: 1976
- Rock Chars: No Planes Of Weakness
- Rock Support Chars: Supporting
- Mine Support Chars: Timber
- Number of Shafts: 2
- Number of Inclines: 1
- Condition 1: Part Accessible
- Condition 2: Flooded
Orebody
Characteristics of the ore body.
- Area: 2.00 hectares (4.94 acres)
- Length:
- Width: 1 meter (2.47 feet)
- Thickness: 61.00 meters (200.13 feet)
- Strike: north 65 west
- Dip: 70 north
- Ore Control: igneous, fracturing
- Ore Record Modified: 1981-07-28
Physiography
Physiographic area where the resource is found.
- Division Province? Section
- Interior Plains Great Plains Province Black Hills
Nearby Deposits
Other deposits in the same region.
-
Cowboy Lodes Tin Mine
- Tin commodity Site type Mine status
- Pennington, South Dakota
- Vein
- 0.07 miles
-
Campaign Tin Occurrence
- Beryllium commodity Site type Occurrence status
- Pennington, South Dakota
- Surface
- 0.11 miles
-
Coats Dike Tin Mine
- Tin commodity Site type Mine status
- Pennington, South Dakota
- 0.15 miles
-
Coats Claim
- Tin commodity Site type Prospect status
- Pennington, South Dakota
- Surface
- 0.33 miles
-
Unnamed Tungsten Occurrence
- Tungsten commodity Site type Occurrence status
- Pennington, South Dakota
- Underground
- 0.66 miles
-
Wolfram Lode
- Tungsten commodity Site type Mine status
- Pennington, South Dakota
- Surface
- 0.71 miles
-
Annie Lode
- Tin commodity Site type Occurrence status
- Pennington, South Dakota
- Surface And Underground
- 0.74 miles
-
Tin Chance Tungsten Prospect
- Beryllium commodity Site type Prospect status
- Pennington, South Dakota
- Underground
- 0.75 miles
-
Tin Spike Mine
- Beryllium commodity Site type Mine status
- Pennington, South Dakota
- Underground
- 0.76 miles
-
Gertie Tin Mine
- Tin commodity Site type Mine status
- Pennington, South Dakota
- 0.77 miles
Nearby Places
- Hill City (1.16 miles away)
- Keystone (9.20 miles away)
- Silver City (10.95 miles away)
- Custer (11.13 miles away)
- Rockerville (12.08 miles away)
- Johnson Siding (13.44 miles away)
- Rochford (14.87 miles away)
- Colonial Pine Hills (15.08 miles away)
- Nemo (18.97 miles away)
- Pringle (22.05 miles away)
Nearby Mining Districts
- Hill City Mining District (0 miles away)
- Oreville Mining District (1.71 miles away)
- Redfern Mining District (2.65 miles away)
- Copper Mountain Area (4.74 miles away)
- Custer Mining District (5.32 miles away)
Nearby Lands
- Black Hills National Forest (0 miles away)
- Black Elk Wilderness (4.24 miles away)
Footnotes
* 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.
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Deposit
REFER TO FIGS 1-3 (WMR 377 ), FIGS 11+12 (PP 247, P 93-4) AND (IC 7069) FOR PLAN AND SECTIONAL VIEWS OF COWBOY TIN MINE. RESERVE ESTIMATES MADE BY BUR OF MINES STAFF (WMR 377, P 6) SH TONS AT 0. 46 SR AND 640 SH TONS BROKEN ORE IN STOPES. TONS ADDED TO TOTAL FOR INFERRED. COWBOY DEPOSIT IS A WELL-DEFINED PEGMATITE-QUARTZ-MUSCOVITE-CASSITERITE VEIN. CASSITERITE OCCURS IN A GREISEN-TYPE VE WITHIN THE PEGMATITE. THESE CASSITERITE SEAMS ARE OF SHOR ICAL AND HORIZONTAL DIMENSIONS AND ARE IRREGULAR IN OCCURR.