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  3. Mineral Resource Data System (MRDS)

American Mining Company

Past Producer in Lawrence county in South Dakota, United States with commodities Gold, Silver
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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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10055505
MRDS ID SD02064
Record type Site
Current site name American Mining Company
Alternate or previous names Dacy Group, Gossan Claim, Gossan Fraction, Eilenberg Fraction, Flora E. Group, Grenville Claim, Eva H., Iva Claim, Iva Fraction, Norwich Claim, Silver Tongue Claim, Silver Tongue Fraction

Geographic coordinates

Geographic coordinates: -103.90002, 44.37079 (WGS84)
Elevation 1743
Relative position .5 MI. NORTH OF RAGGED TOP MOUNTAIN

Site location context

Political divisions (FIPS codes)

Lawrence(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Savoy(quadrangle 1:24,000 scale)

Rapid City(quadrangle 1:100,000 scale)

Rapid City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Redwater(hydrologic unit)

Belle Fourche(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 Lawrence

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 005N 002E 29 South Dakota

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Gold Ore
Silver Ore
Fluorite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Pahasapa Limestone
    Rock description Pahasapa Limestone
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Mississippian

Nearby scientific data

(1) -103.90002, 44.37079
ListMap

Economic information

Ore body information

  • Strike NE
    Dip 90 DEG

Controls for ore emplacement

  • Northeast Trending Vertical Fractures

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1896

Mining district

District name Ragged Top District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner-Operator
    Owner American Mining Co.

Comments on the production information

  • PRODUCED ONLY 1896 - 1898 .

Workings at the site

  • Type of workings Underground
    Area 850HA
    Overall depth 154M

Comments on the workings information

  • DEPTH BELOW SURFACE FOR DACY AND FLORA E. SHAFTS. IN SPEARFISH CANYON NEAR THE MOUTH OF LONG VALLEY A SHAFT 70 M DEEP WAS SUNK AND DRIFTS EASTWARD TO THE DACY SHAFT EXTENDED 610 M.

Comments on development

  • ECON.COM: NONCOMMERCIAL BELOW 15 M

Reference information

Bibliographic references

  • Deposit

    US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688

  • Production

    US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688 .

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 Barari, Rachel A. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site