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  3. Mineral Resource Data System (MRDS)

Eureka

Occurrence in Pennington county in South Dakota, United States with commodities Feldspar, Mica, Beryllium
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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. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10055773
MRDS ID SD02520
Record type Site
Current site name Eureka

Geographic coordinates

Geographic coordinates: -103.38945, 43.86913 (WGS84)
Elevation 1341
Location accuracy 500(meters)
Relative position 2.5 MILES UP IRON CREEK FROM GLENDALE, 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

Iron Mountain(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 002S 006E 15 South Dakota

Comments on the location information

  • N OF CENTER OF S LINE OF SECTION 15

Commodities

Commodity Importance
Feldspar Primary
Mica Primary
Beryllium Critical Primary

Comments on the commodity information

  • SOME MICA IS SHEET QUALITY

Materials information

Materials Type of material
Beryl Ore
Feldspar Ore
Muscovite Ore
Cleavelandite Gangue
Microcline Gangue
Quartz Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -103.38945, 43.86913
ListMap

Economic information

Ore body information

  • Strike EAST-WEST
    Dip 90
    Plunge direction EAST
    Length 106.68M
    Width 36.58M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Unorganized District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner George Madill And William Graham Of Keystone, Sd

Comments on the workings information

  • A SERIES OF SMALL TEST PITS (1943)

Reference information

Bibliographic references

  • Deposit

    USBM CIRC 7707, P. 71

General comments

Subject category Comment text
Deposit UNPATENTED LODE CLAIM

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1982 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