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  3. Mineral Resource Data System (MRDS)

Thornton Pit

Producer in Adams county in Colorado, United States with commodities Sand and Gravel, Construction, Gold
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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. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10087759
MRDS ID D009443
Record type Site
Current site name Thornton Pit

Geographic coordinates

Geographic coordinates: -104.92196, 39.87082 (WGS84)
Elevation 1545
Relative position 10 MILES N 21 E FROM DENVER

Site location context

Political divisions (FIPS codes)

Adams(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Commerce City(quadrangle 1:24,000 scale)

Denver East(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle South Platte-Cherry Creek(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Colorado Adams

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 002S 067W 17,19,20 SW (17); NE (19); NW OF NW (20) Colorado

Comments on the location information

  • WEST OF SOUTH PLATTE RIVER ; INFO FROM LAND.ST :(1974)

Commodities

Commodity Importance
Sand and Gravel, Construction Primary
Gold Secondary

Comments on the commodity information

  • PLACER GOLD IS RECOVERED AS BY-PRODUCT OF WASHING/SCREENING OF SAND AND GRAVEL FOR CONSTRUCTION AGGREGATES

Materials information

Materials Type of material
Gold Ore
Sand and Gravel Ore

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Sand and Gravel
    Rock unit name Louviers Alluvium;Piney Creek Alluvium
    Rock description Louviers Alluvium;Piney Creek Alluvium
    Stratigraphic age (youngest) Pleistocene

Nearby scientific data

(1) -104.92196, 39.87082
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Denver Basin, Front Range Uplift
Type of structure Local
Structure description Denver Basin

Ore body information

  • General form TABULAR
  • General form TABULAR

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Significant No
Year of first production 1980

Mining district

District name Denver Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Cooley Gravel Co.
    First year 1982

Comments on the workings information

  • DRAGLINE-OPERATED OPEN PIT

Reference information

Bibliographic references

  • Deposit

    LINDVALL, R.M., 1979, PRELIMINARY GEOLOGIC MAP OF THE COMMERCE CITY QUADRANGLE, ADAMS AND DENVER COUNTIES, COLORADO: USGS MAP MF-1067.

  • Deposit

    JAMES B. COOLEY, PERS. COMM., 8/82

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1982 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.