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Fern Cliff Prospect

Past Producer in Custer county in South Dakota, United States with commodity Tungsten
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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 10055772
MRDS ID SD02519
Record type Site
Current site name Fern Cliff Prospect

Geographic coordinates

Geographic coordinates: -103.37862, 43.85218 (WGS84)
Elevation 1402
Location accuracy 500(meters)
Relative position 6.5 MILES SOUTHEAST OF KEYSTONE AND .75 MILE NORTH OF SPOKANE, 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

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 Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 002S 006E 27 NE OF NE South Dakota

Comments on the location information

  • ONE SOURCE LOCATES THE MINE IN SECTION 26

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore
Wolframite Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -103.37862, 43.85218
ListMap

Economic information

Ore body information

  • Width 1.22M

Comments on the geologic information

  • BELOW ZONE OF OXIDATION

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
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 Operator
    Owner T. J. Oltman Of Lemmon And W. D. Fillmore Of Spearfish
    First year 1944
  • Type Owner
    Owner Friend C. Robertson

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 9.14M

Comments on the workings information

  • WITH DRIFTS AND TRENCHING; 2 SHAFTS

Reference information

Bibliographic references

  • Deposit

    USBM CIRC 7707, P. 85-86.

  • Deposit

    ROBERTS, W.L. AND RAPP, G. JR., 1965, MINERALOGY OF THE BLACK HILLS, BULLETIN NO. 18 OF THE SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY

General comments

Subject category Comment text
Deposit WESTERN VEIN STRIKES N AND IS FROM 1.5 TO 4 FT WIDE. THE EASTERN VEIN STRIKES N 30 W AND IS ABOUT 2 FT THICK, THEY JOIN TO FORM A SINGLE VEIN ABOUT 4 FT WIDE.

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