Horseman's Prospect

Prospect in Nez Perce county in Idaho, United States with commodities Copper, Silver, Gold, Molybdenum
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Mineral rights holdings
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10072121
MRDS ID W015976
MAS/MILS ID 0160690004
Record type Site
Current site name Horseman's Prospect
Alternate or previous names George Horseman's Property, Winchester Copper

Geographic coordinates

Geographic coordinates: -116.71042, 46.06766 (WGS84)
Elevation 1036
Relative position 16 MI SW OF WINCHESTER; 8 MI FROM TOWN OF FOREST.

Site location context

Political divisions (FIPS codes)

Nez Perce(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hoover Point(quadrangle 1:24,000 scale)

Orofino(quadrangle 1:100,000 scale)

Pullman(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Salmon(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management ID)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Idaho Nez Perce

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 032N 003W 33,34 C E2 (33) Idaho

Comments on the location information

  • On Nez Perce-Lewis Counties Boundary; 11 Mi Sw Of Mason Butte; Property Is Situated Where Flat Timbered Summit Of Craig Mountain Changes To The Steep Grassy Slopes Of Salmon River Canyon.

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Tertiary
Molybdenum Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Chrysocolla Ore
Copper Ore
Molybdenite Ore
Calcite Gangue
Pyrite Gangue
Siderite Gangue
Talc Gangue

Alteration

  • (Local) Silicification

Analytical data

Result REPORTED 3% CU, 2 OZ AG, AND ABOUT 50 CENTS AU/TON.

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Seven Devils Volcanics-Crushed Green Andesite Schist
    Rock description Seven Devils Volcanics-Crushed Green Andesite Schist
    Stratigraphic age (youngest) Late Triassic

Nearby scientific data

(1) -116.71042, 46.06766

Economic information

Ore body information

  • Strike N 30 DEG W
    Dip 90 DEG
    Length 304.8M
    Width 3.05M

Controls for ore emplacement

  • Fault Fissure

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Deer Creek District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner Svan P. Olander
  • Type Owner
    Owner Svan P. Olander, Emily A. Olander

Workings at the site

  • Type of workings Surface/Underground
    Length 182.88M

Comments on the workings information

  • Open Cuts, Tunnels, Small Shafts

Comments on development

  • 9 Unpatented Claims And Some Patented Ground In Sec. 33.

Reference information

Bibliographic references

  • Deposit

    Hubbard, C. R., 1955, Idaho Bureau Of Mines And Geology Open-File Report, 6 P.

  • Deposit

    Livingston, D. C., And Laney, F. B., 1920, The Copper Deposits Of The Seven Devils And Adjacent Districts: Idaho Bureau Of Mines And Geology Bulletin 1, 105 P.

  • Deposit

    Hubbard, C. R., 1956, Geology And Mineral Resources Of Nez Perce County: Idaho Bureau Of Mines And Geology County Rept. 1, 17 P.

General comments

Subject category Comment text
Deposit Bonanza Copper Vein Strikes S 57 Deg E, Dips 40 Deg S; Second Vein Series Strikes Slightly E. Of N.; Third Vein Series Strikes E-W.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Miller, Pat J. U.S. Geological Survey
Reporter 15-OCT-1990 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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