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Gertie

Past Producer in Pennington county in South Dakota, United States with commodities Tin, 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. Production statistics
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10101551
MRDS ID D004757
Record type Site
Current site name Gertie

Geographic coordinates

Geographic coordinates: -103.58389, 43.92274 (WGS84)
Elevation 1548
Relative position 0.5 MILE SOUTHWEST OF HILL CITY, SOUTH DAKOTA

Site location context

Political divisions (FIPS codes)

Pennington(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hill City(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 Pennington

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 001S 004E 36 South Dakota

Comments on the location information

  • NE 1/4

Commodities

Commodity Importance
Tin Critical Primary
Feldspar Tertiary
Mica Tertiary

Comments on the commodity information

  • CASSITERITE OCCURS IN CRYSTALS UP TO 1 INCH IN LENGTH

Materials information

Materials Type of material
Cassiterite Ore
Feldspar Ore
Muscovite Ore
Quartz Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite
    Rock description Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -103.58389, 43.92274
ListMap

Economic information

Ore body information

  • General form TWO PARALLEL DIKES
    Dip 45 SW
    Thickness 0.91M
    Length 45.72M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Hill City District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Operator
    Owner Mr. E. C. Johnson
  • Type Owner
    Owner Harney Peak Co.

Production statistics

  • Year 1906
    Material CONC SN
    Accuracy Accurate
    Description Ap_Grade: ^60% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Tin Tin 60wt-pct

Comments on the production information

  • ITEM 2 - SEVERAL HUNDRED POUNDS

Comments on the workings information

  • A 500 FT INCLINED SHAFT WITH CONSIDERABLE DRIFTING & STOPING FROM THE 100 - 200 -, 300 - & 400 FT LEVELS.

Comments on development

  • 2 PATENTED CLAIMS TOTALING 40 ACRES.

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

  • 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 THE SECOND DIKE, 20 FT NORTHWEST VARIES FROM A FEW INCHES TO 4 OR 5 FT IN WIDTH & CAN BE TRACED FOR OVER 0.5 MILE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1980 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

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