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Black Metal Group

Occurrence in Pennington county in South Dakota, United States with commodities Tungsten, Tin
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10011988
MRDS ID D007210
Record type Site
Current site name Black Metal Group

Geographic coordinates

Geographic coordinates: -103.55862, 43.9469 (WGS84)
Elevation 1597
Location accuracy 1000(meters)
Relative position IN CHINA GULCH, 1 MILE NORTHEAST OF HILL CITY, SOUTH DAKOTA

Site location context

Political divisions (FIPS codes)

Pennington(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hill City(quadrangle 1:24,000 scale)

Mount Rushmore(quadrangle 1:100,000 scale)

Hot Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Cheyenne-Spring(hydrologic unit)

Cheyenne(hydrologic accounting unit)

Cheyenne(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Black Hills National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States South Dakota Pennington

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 001S 005E 19,20 E2 (19); W2 (20) South Dakota

Commodities

Commodity Importance
Tungsten Critical Primary
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Ore
Scheelite Ore
Wolframite Ore
Mica Gangue
Pyrite Gangue
Quartz Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -103.55862, 43.9469
ListMap

Economic information

Ore body information

  • Width 0.3M

Comments on the geologic information

  • THE CASSITERITE IS LIGHT COLORED AND IS MIXED WITH WOLFRAMITE, OCCURING IN MASSES UP TO 2 LBS. IN WEIGHT

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Hill City District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 14.33M
    Overall length 18.29M

Comments on the workings information

  • A VERTICAL EAST-WEST VEIN ON BLACK METAL NO. 3 WAS DEVELOPED BY 60 FT OF TRENCHING AND & 47 FT SHAFT. ANOTHER VEIN ON SAME CLAIM IS 6 TO 8 INCHES WIDE AND STRIKES N23W AND DIPS STEEPLY NE. A 65-FOOT VERTICAL SHAFT WITH 30 FEET OF DRIFTING TO THE NORTH AND A SIMILAR DISTANCE TO THE SOUTH FROM ITS BASE EXPOSES A 6 TO 8 INCH VERTICAL VEIN ON THE BLACK METAL NO. 6 LODE. TWO TEST PITS ON THE BLACK METAL NO. 5 REVEAL A 9- TO 12- INCH VEIN WHICH STRIKES N 50 TO 55 DEG E AND DIPS 45 DEG NORTHWEST, ASSESSMENT PITS AND EXPLORATORY TRENCHES EXPOSE LESSER VEINS ON OTHER CLAIMS.

Reference information

Bibliographic references

  • Deposit

    U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707

General comments

Subject category Comment text
Deposit 9 PATENTED CLAIMS TOTALLING 180 ACRES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1981 Barari, Rachel A. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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