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  3. Mineral Resource Data System (MRDS)

Olaf Seim Mine

Past Producer in Lawrence county in South Dakota, United States with commodities Sulfur-Pyrite, Gold, Copper
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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. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10055572
MRDS ID SD02157
Record type Site
Current site name Olaf Seim Mine
Alternate or previous names Gotland

Geographic coordinates

Geographic coordinates: -103.74363, 44.36857 (WGS84)
Elevation 1426
Relative position WEST EDGE OF DEADWOOD, SOUTH DAKOTA

Site location context

Political divisions (FIPS codes)

Lawrence(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Deadwood South(quadrangle 1:24,000 scale)

Rapid City(quadrangle 1:100,000 scale)

Rapid City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Belle Fourche(hydrologic unit)

Belle Fourche(hydrologic accounting unit)

Cheyenne(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States South Dakota Lawrence

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 005N 003E 22,27 South Dakota

Comments on the location information

  • DUE NORTH OF MONTEZUMA AND WHIZZERS MINE

Commodities

Commodity Importance
Sulfur-Pyrite Primary
Gold Secondary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Pyrite Ore
Melanterite Gangue

Nearby scientific data

(1) -103.74363, 44.36857
ListMap

Economic information

Ore body information

  • Strike SLIGHTLY WEST OF NORTH
    Dip STEEPLY TO THE EAST

Controls for ore emplacement

  • Black Graphitic Slate Member.

Comments on the geologic information

  • ORE IS PYRITE WITH A VERY SMALL QUANTITY OF CHALCOPYRITE. IRON DIKE TRACED FROM WEST OF DEADWOOD TO NEAR KIRK, AN OUTCROP DISTANCE OF 3 - 4 MILES.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1890

Ownership information

  • Type Owner-Operator
    Owner Heirs Of Olaf Seims And James Nelson

Workings at the site

  • Type of workings Underground
    Length 243.84M

Comments on the workings information

  • IRREGULARLY STOPED OUT DRIFT

Comments on development

  • ON THE GOTLAND AND GOTLAND FRACTION CLAIMS

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

General comments

Subject category Comment text
Deposit LOCALLY CALLED THE IRON DIKE

Reporter information

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

Beyond USGS

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

External references

Maps centered on this site