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Homestake Mine

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

Geologic information

Identification information

Deposit ID 10070998
MRDS ID W014170
MAS/MILS ID 0160370399
Record type Site
Current site name Homestake Mine
Alternate or previous names Last Chance

Geographic coordinates

Geographic coordinates: -114.85953, 44.24908 (WGS84)
Elevation 2012
Relative position 3 MI NE OF LOWER STANLEY

Site location context

Political divisions (FIPS codes)

Custer(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Casino Lakes(quadrangle 1:24,000 scale)

White Cloud Peaks(quadrangle 1:100,000 scale)

Challis(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Salmon(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Sawtooth 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 Idaho Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 011N 014E 30,31 NWSESE (30) Idaho

Comments on the location information

  • Located 1/3 Mi S of Salmon River, Between Little Casino Cr and Ridge Crest.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Fluorine-Fluorite Critical Tertiary
Lead Tertiary

Comments on the commodity information

  • A Hand Picked Sample Assayed Up To $1,400 Per Ton In Au and Ag.

Materials information

Materials Type of material
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Deep Weathering

Analytical data

Result COMPOSITE SAMPLE FROM THE MIDDLE ADIT ASSAYED AT 0.17 OZ AU AND 1.33 AG PER TON
Result 1 CHIP SAMPLE ACROSS FLUORITE - QUARTZ VEIN ASSAYED 33.6% CAF2

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Idaho Batholith-Quartz Monzonite;Rhyolite Dikes
    Rock description Idaho Batholith-Quartz Monzonite;Rhyolite Dikes
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -114.85953, 44.24908
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Idaho Batholith; Salmon R Fault
Type of structure Local
Structure description Two Or Three Sets Of Faults; Slickensides. Brecciation, Gouge

Ore body information

  • General form LINEAR
    Strike NE
    Dip NW
    Thickness 2.74M

Controls for ore emplacement

  • Fault Zones

Comments on the geologic information

  • Range of Fault Attitudes From N 42 Deg E To N 70 Deg E, and 73 Deg NW To 78 Deg Nw

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1932
Discoverer Arnold Woolard
Year of first production 1934

Mining district

District name Stanley District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest
Area name Challis National Forest
Ownership category National Recreation Area

Ownership information

  • Type Operator
    Owner Woolard, Arnold
  • Type Owner
    Owner Maurice Patterson

Comments on the production information

  • Value Au $1000 - $1600.

Workings at the site

  • Type of workings Surface/Underground
    Length 426.72M

Comments on the workings information

  • The Workings Consist of 4 Adits, 13 Prospect Pits.

Comments on development

  • Joins Giant Spar On the E and Se

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Discovery Year: EARLY 1930'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1975 Yett, Jay R.; Miller, Pat U.S. Geological Survey
Reporter 30-JUN-1992 Federspiel U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site