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Marydale Prospect

Past Producer in Custer county in South Dakota, United States with commodity 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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10055794
MRDS ID SD02549
Record type Site
Current site name Marydale Prospect

Geographic coordinates

Geographic coordinates: -103.61306, 43.69857 (WGS84)
Elevation 1634
Location accuracy 500(meters)
Relative position 5 MILES SOUTH 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

Cicero Peak(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 004S 004E 14 SW South Dakota

Commodities

Commodity Importance
Mica Primary

Materials information

Materials Type of material
Muscovite Ore
Apatite Gangue
Biotite Gangue
Microcline Gangue
Quartz Gangue
Tourmaline Gangue

Alteration

  • (Local) Much Of The Mica Is Air Stained, Ruled And Badly Reeved

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 > Mica Schist
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -103.61306, 43.69857
ListMap

Economic information

Ore body information

  • Strike N 20 W
    Dip 70 SW
    Plunge 55-60 SE
    Length 21.34M
    Width 4.27M

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 National Forest
Area name Black Hills

Ownership information

  • Type Operator
    Owner Young, Art
    Home office Custer, Sd
    First year 1943
  • Type Owner
    Owner Young, Art
    Home office Custer, Sd

Workings at the site

  • Type of workings Surface
    Overall depth 6.1M
    Overall length 21.34M
    Overall width 3.05M

Comments on the workings information

  • THERE ARE 2 SMALLER CUTS

Reference information

Bibliographic references

  • Deposit

    U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS. SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707 P. 160

  • Deposit

    USGS PP 247, P. 10, 11, 149-150.

  • Production

    USGS PP 247, P. 149

General comments

Subject category Comment text
Deposit ONLY THE MOST NORTHERLY PEGMATITE CONTAINS SHEET MICA

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1983 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