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Terry & Terry No. 1 Claims

Past Producer in Custer county in South Dakota, United States with commodities Mica, Tantalum
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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. Geologic structures
  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 10011958
MRDS ID D007165
Record type Site
Current site name Terry & Terry No. 1 Claims
Alternate or previous names Thom Carroll Property

Geographic coordinates

Geographic coordinates: -103.56223, 43.7719 (WGS84)
Elevation 1597
Location accuracy 500(meters)
Relative position 1.5 MILES EAST 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

Custer(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 005E 19 SE South Dakota

Commodities

Commodity Importance
Mica Primary
Tantalum Critical Secondary

Materials information

Materials Type of material
Mica Ore

Analytical data

Result MICA COMPOSES AS MUCH AS 20 TO 25 PERCENT OF THE PEGMATITE

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

Nearby scientific data

(1) -103.56223, 43.7719
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Flat Fault 8 Feet Below Surface.

Ore body information

  • General form DIKE
    Strike N 75 W
    Dip SW
    Length 18.29M
    Width 2.13M

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 National Forest
Area name Black Hills National Forest

Ownership information

  • Type Operator
    Owner John Ross And Kenneth Spring
  • Type Owner
    Owner Phillip Demming

Comments on the production information

  • LESS THAN 10 PERCENT WAS NO. 1 GRADE

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 15.24M

Comments on the workings information

  • TWO SHAFTS AND ONE SMALL OPEN PIT. ONE SHAFT IS 50 FT DEEP BUT IS BACKFILLED TO 22 FEET BELOW THE SURFACE. THE OTHER SHAFT IS AN INCLINED SHAFT OF 18 FEET. SHORT DRIFTS WERE DRIVEN FROM THE DEEPER SHAFT, BUT ARE INACCESSIBLE.

Reference information

Bibliographic references

  • Deposit

    U.S. BUREAU OF MINES, 1954, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707

  • Deposit

    ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18

  • Production

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

General comments

Subject category Comment text
Deposit COMPOSITE OF TWO PEGMATITE DIKES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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