1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Case Group

Occurrence in Custer county in South Dakota, United States with commodity Manganese
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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. Ownership information
  14. Reserves and resources
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10055724
MRDS ID SD02452
Record type Site
Current site name Case Group

Geographic coordinates

Geographic coordinates: -103.71779, 43.52135 (WGS84)
Elevation 1402
Location accuracy 2000(meters)
Relative position 18 MILES SOUTHWEST OF CUSTER, SOUTH DAKOTA. LYING ON THE EAST SLOPE OF PLEASANT VALLEY.

Site location context

Political divisions (FIPS codes)

Custer(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Argyle(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)

Geographic areas

Country State County
United States South Dakota Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 006S 003E 13;14;23;24 South Dakota

Comments on the location information

  • ON THE MAP PLEASANT VALLEY IS IN T.5S; THEREFORE, THE TOWNSHIP GIVEN MAY BE INCORRECT.

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Pyrolusite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -103.71779, 43.52135
ListMap

Economic information

Ore body information

  • General form FLAT LYING BED
    Thickness 4.57M
    Length 0.46M
    Width 0.15M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Unorganized District

Ownership information

  • Type Owner
    Owner Taylor, G. H. And Dick, Arnke, John W.
    Home office Custer, Sd
  • Type Owner
    Owner Collingwood, Lewis
    Home office Pringle, Sd
  • Type Owner
    Owner Carrol, Don
    Home office Omaha, Ne

Reserves and resources

  • Type In-situ
    Estimate year 1941
    Total resources 31000mt ore
    Commodity Subtype Grade units Group Importance Year
    Manganese Mn 10 wt-pct Manganese Major 1941

Comments on the workings information

  • A FEW SMALL DISCOVERY CUTS

Comments on development

  • LOW GRADE ORE

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

General comments

Subject category Comment text
Deposit THICKNESS AVERAGES 30 INCHES. OVERBURDEN IS 5 - 35 FT GRAVEL. EXACT EXTENT IS UNKNOWN BUT COULD BE AS MUCH AS 1.5 MILES LONG BY 0.5 MILE WIDE. SIX UNPATENTED CLAIMS. HIGH SILICA CONTENT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-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