Thompson Cobb Group

Past Producer in Washington county in Utah, United States with commodities Silver, Copper, Uranium
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. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  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 10055118
MRDS ID RE00086
Record type Site
Current site name Thompson Cobb Group
Alternate or previous names Thompson and Cobb Claims, Newton, Nichols, Mcnally Mines
Related records 10179642

Geographic coordinates

Geographic coordinates: -113.38219, 37.23692 (WGS84)
Elevation 1073
Relative position 4500 FT SW OF USSMM #1

Site location context

Political divisions (FIPS codes)

Washington(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Harrisburg Junction(quadrangle 1:24,000 scale)

Saint George(quadrangle 1:100,000 scale)

Cedar City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Virgin(hydrologic unit)

Lower Colorado-Lake Mead(hydrologic accounting unit)

Lower Colorado-Lake Mead(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management UT)

Bureau of Land Management UT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Utah Washington

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 041S 013W 12 SE OF SW OF NW Utah

Comments on the location information

  • AREA INCLUDES THE SOUTH THOMPSON, THOMPSON, COBB, NEWTON, NICHOLS & MCNALLY MINES

Commodities

Commodity Importance
Silver Primary
Copper Tertiary
Uranium Tertiary

Materials information

Materials Type of material
Cerargyrite Ore
Chalcocite Ore
Malachite Ore
Silver Ore

Analytical data

Result SAMPLE FROM THE COBB MINE CONTAINED .003%

Nearby scientific data

(1) -113.38219, 37.23692

Economic information

Geologic structures

Type of structure Regional
Structure description Pine Valley Mts
Type of structure Local
Structure description Virgin Anticline

Ore body information

  • General form TABULAR
    Thickness 1.52M
    Length 609.6M
    Width 60.96M
    Depth to top 0M
    Depth to bottom 91.44M

Controls for ore emplacement

  • Bedding

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1875

Mining district

District name Silver Reef District

Ownership information

  • Type Operator
    Owner 5m Corp.
  • Type Owner
    Owner 5m Corp. (Hurricane)

Workings at the site

  • Type of workings Underground
    Length 457.2M
    Overall depth 60.96M

Reference information

Bibliographic references

  • Deposit

    PROCTOR, PAUL, D., 1953, THE GEOLOGY OF SILVER REEF (HARRISBURG) MINING DISTRICT, WASHINGTON COUNTY, UTAH: UGMS BULL. 44, 154-155 P

General comments

Subject category Comment text
Deposit REC. NUMBER B10 <DC15455>

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1979 Everts, Michael L. Utah Geological and Mineral Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.