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Dubuque and Royal Flush Claims

Past Producer in Custer county in South Dakota, United States with commodities Mica, Beryllium, Feldspar
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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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10012473
MRDS ID D008119
Record type Site
Current site name Dubuque and Royal Flush Claims

Geographic coordinates

Geographic coordinates: -103.6939, 43.74135 (WGS84)
Elevation 1707
Relative position SIX MILES SW OF CUSTER, SOUTH DAKOTA AND ONE MILE NW OF FOURMILE, SOUTH DAKOTA.

Site location context

Political divisions (FIPS codes)

Custer(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fourmile(quadrangle 1:24,000 scale)

Mount Rushmore(quadrangle 1:100,000 scale)

Hot Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Angostura Reservoir(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 Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 003S 004E 31 SW South Dakota

Commodities

Commodity Importance
Mica Primary
Beryllium Critical Primary
Feldspar Primary

Comments on the commodity information

  • MOST MICA IS SUITABLE FOR SCRAP.

Materials information

Materials Type of material
Beryl Ore
Feldspar Ore
Mica Ore
Albite 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 Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -103.6939, 43.74135
ListMap

Economic information

Ore body information

  • General form DIKELIKE
    Strike N35W
    Dip 60NE
    Length 304.8M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Custer District

Land status

Ownership category
Area name Black Hills

Ownership information

  • Type Owner
    Owner G. Behren, William Nevin And Mrs. Otto Newberry
    Home office Custer, S.D.

Comments on the production information

  • PRODUCTION DATA FOR DUBUQUE AND ROYAL FLUSH CLAIMS.

Workings at the site

  • Type of workings Surface
    Overall depth 2.44M
    Overall length 15.24M
    Overall width 7.62M

Comments on the workings information

  • FIVE SHALLOW CUTS ON THE DUBUQUE. THE ROYAL FLUSH HAS TWO PITS. LARGEST PIT DIMENSIONS LISTED ABOVE.

Reference information

Bibliographic references

  • Deposit

    USBM INFO CIRC 7707, P. 118.

  • Deposit

    USGS PP 247, P. 100-101.

General comments

Subject category Comment text
Deposit BOTH CLAIMS ARE IN THE SAME PEGMATITE. THE DUBUQUE IS NORTH OF THE ROYAL FLUSH. THE DUBUQUE IS UNPATENTED AND THE ROYAL FLUSH IS PATENTED. TWO ZONES PRESENT. AVERAGE THICKNESS IS 8 FT. DIP IS 50-65 NE. DIP OF SCHIST IS 40-65 SW.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1981 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