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Dorothy Lode

Past Producer in Custer county in South Dakota, United States with commodities Feldspar, Mica
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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 10012483
MRDS ID D008132
Record type Site
Current site name Dorothy Lode

Geographic coordinates

Geographic coordinates: -103.63445, 43.75413 (WGS84)
Elevation 1634
Location accuracy 500(meters)
Relative position 2 MILES SOUTHWEST OF CUSTER, 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

Berne(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 Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 003S 004E 27 SW South Dakota

Commodities

Commodity Importance
Feldspar Primary
Mica Primary

Comments on the commodity information

  • GOOD QUALITY FELDSPAR.

Materials information

Materials Type of material
Albite Ore
Microcline Ore
Muscovite Ore
Beryl Gangue
Quartz Gangue
Tantalite 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) -103.63445, 43.75413
ListMap

Economic information

Ore body information

  • General form ELONGATE
    Length 60.96M
    Width 30.48M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No

Mining district

District name Custer District

Land status

Ownership category
Area name Black Hills

Ownership information

  • Type Owner-Operator
    Owner Consolidated Feldspar Corp.
    Home office Trenton, N.J.
    First year 1942

Comments on the production information

  • SEVERAL HUNDRED TONS OF FELDSPAR HAVE BEEN SHIPPED, AS WELL AS A SMALL AMOUNT OF SHEET AND SCRAP MICA.

Workings at the site

  • Type of workings Surface
    Area 0.049HA
    Overall depth 7.62M
    Overall length 22.86M
    Overall width 22.86M

Reference information

Bibliographic references

  • Deposit

    USBM INFO CIRC 7707, P. 106-107.

  • Deposit

    USGS PP 247, P. 100.

  • Production

    USBM INFO CIRC 7707, P. 106.

General comments

Subject category Comment text
Deposit MOST MICA IS ON THE EAST WALL ON THE SOUTH END. MICA BOOKS AVERAGE 3 X 4 INCHES. PART OF THE MICA IS RUBY MICA OF GOOD QUALITY AND WHITE, SOFT MICA OF SCRAP QUALITY.

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.

External references

Maps centered on this site