Sally Cavanaugh

Occurrence in Pennington county in South Dakota, United States with commodities Tin, Mica
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. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10010797
MRDS ID D004773
Record type Site
Current site name Sally Cavanaugh

Geographic coordinates

Geographic coordinates: -103.62557, 43.87302 (WGS84)
Elevation 1670
Relative position JUST WEST OF THE OLD SETTLEMENT OF OREVILLE. OREVILLE LIES ON THE DEADWOOD BRANCH OF THE CHICAGO, BURLINGTON, & QUINCY RAILROAD ABOUT 7 MILES 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

Berne(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 002S 004E 15 South Dakota

Comments on the location information

  • S 1/2, NEAR CENTER

Commodities

Commodity Importance
Tin Critical Primary
Mica Primary

Materials information

Materials Type of material
Cassiterite Ore
Muscovite Ore
Cleavelandite Gangue
Quartz Gangue

Analytical data

Result THE EXPOSED TIN LENS WOULD ASSAY AT ABOUT 15% SN.

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

Nearby scientific data

(1) -103.62557, 43.87302

Economic information

Ore body information

  • General form DIKE
    Strike N 10 W
    Dip 90
    Thickness 0.61M
    Length 114.3M
    Width 4.57M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Unorganized District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Comments on the workings information

  • DEVELOPMENT CONSISTS OF SEVERAL SMALL OPEN CUTS

Comments on development

  • ONE UNPATENTED LODE CLAIM

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

  • Deposit

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

General comments

Subject category Comment text
Deposit THE CASSITERITE IS ASSOCIATED WITH THE MUSCOVITE IN "SHOOTS" UP TO 2 FEET IN THICKNESS

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