Portland Mine and Hercules Mine

Prospect in Carbon county in Wyoming, United States with commodities Copper, Gold, Silver, Platinum, Palladium
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. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10205227
MAS/MILS ID 0560070375
Record type Site
Current site name Portland Mine and Hercules Mine
Alternate or previous names Portland & Hercules Mines

Geographic coordinates

Point of reference Geographic coordinates: Elevation UTM Precision Relative position Point location
Main Entrance -106.98759, 41.14913 (WGS84) 2966 10 Portland Mine. 1/2 mi. South of Battle along the Huston-Standard Park Jeep trail. West of Hercules Mine., Within 10 Meters.
(click for info)
Main Entrance -106.98177, 42.14967 (WGS84) 10 Hercules Mine. 1/2 mi. South of Battle along the Huston-Standard Park Jeep trail. East of Portland Mine., Within 10 meters., Within 10 meters.

Site location context

Political divisions (FIPS codes)

Carbon(county)

Wyoming(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Red Mountain(quadrangle 1:24,000 scale)

Saratoga(quadrangle 1:100,000 scale)

Rawlins(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Little Snake(hydrologic unit)

White-Yampa(hydrologic accounting unit)

White-Yampa(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Medicine Bow-Routt 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 Wyoming Carbon

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 14N 85W 30 E2 SE Wyoming
6th Principal 14N 85W 29 W2 SW Wyoming

Commodities

Commodity Importance
Copper Primary
Gold Tertiary
Silver Tertiary
Platinum Critical Tertiary
Palladium Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Chalcocite Ore
Bornite Ore
Hematite Gangue
Quartz Gangue
Calcite Gangue
Siderite Gangue

Analytical data

Result A sample assayed 2.75% Cu.
Result Another sample yielded 85 ppm to 3.2% Cu and 0 to 0.9 ppm Ag.
Result Other samples ranged from .001 to 1.0 ppm Au, 0 to 0.30 ppm Pt, .002 to .02 ppm Pd.

Nearby scientific data

Main Entrance (1) Glacial deposits
Main Entrance (2) -106.98177, 42.14967

Economic information

Comments on the geologic information

  • Mines are on sheared contact between metadolomite and phyllite with intrusive red granite to the south.

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Significant No

Mining district

District name Encampment District

Land status

Ownership category Private

Workings at the site

  • Type of workings Underground
    Name of workings Hercules shaft
    Overall depth 22.86M
  • Type of workings Underground
    Name of workings Portland Mine
    Length 149.35M

Reference information

Bibliographic references

  • Deposit

    Osterwald and others, 1966, Mineral Resources of Wyoming: Geological Survey of Wyoming Bull. 50 [revised ed.], p. 49.

  • Deposit

    Osterwald and others, 1959, Mineral Resources of Wyoming: Geological Survey of Wyoming Bull. 50, p. 46.

  • Deposit

    Hausel, 1986, Mineral deposits of the Encampment mining district, Sierra Madre, Wyoming-Colorado: Geological Survey of Wyoming RI-37, p. 22.

  • Deposit

    Hausel, 1997, Copper, lead, zinc, molybdenum, and associated metal deposits of Wyoming: Wyoming State Geological Survey Bull. 70, p. 176.

Reporter information

Type Date Name Affiliation Comment
Reporter 18-NOV-83 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines
Editor 10-FEB-09 Wilson, Anna B. U.S. Geological Survey

Beyond USGS

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

External references