Keystone Mine

Past Producer in Pennington county in South Dakota, United States with commodities Gold, Silver
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Land status
  9. Reserves and resources
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10129376
MAS/MILS ID 0461030172
Record type Site
Current site name Keystone Mine

Geographic coordinates

Point of reference Trench
Geographic coordinates: -103.37836, 43.89856 (WGS84)
Elevation 1341
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Pennington(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Rushmore(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

Commodities

Commodity Importance
Gold Primary
Silver Tertiary

Nearby scientific data

Trench (1) -103.37836, 43.89856

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No

Land status

Ownership category Private

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Indicated 680000mt ore
    Demonstrated 680000mt ore
    Total resources 680000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 10.6 g/mt Gold Major 1993

Reference information

Bibliographic references

  • Deposit

    USBM STAFF,REG.V,INFO.CIRC.7707,1955,P.94

  • Deposit

    SKILLINGS MINING REVIEW. "HARRISON WESTERN COMPLETES

  • Deposit

    KEYSTONE, S.D., DRILLING PROGRAM." JAN. 16, 1993. P. 37.

Reporter information

Type Date Name Affiliation Comment
Reporter 25-SEP-96 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines

Beyond USGS

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