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Keystone Mine

Past Producer in Elmore county in Idaho, United States with commodities Gold, Silver
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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. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10070018
MRDS ID W007853
MAS/MILS ID 0160390033
Record type Site
Current site name Keystone Mine
Alternate or previous names E. N. Stone Property, Mountain View

Geographic coordinates

Geographic coordinates: -115.30484, 43.67798 (WGS84)
Elevation 1768
Relative position 1 MI SW OF ROCKY BAR

Site location context

Political divisions (FIPS codes)

Elmore(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rocky Bar(quadrangle 1:24,000 scale)

Idaho City(quadrangle 1:100,000 scale)

Hailey(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork Boise(hydrologic unit)

Middle Snake-Boise(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Boise 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 Elmore

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 004N 010E 17, 18 SESE (18) Idaho

Comments on the location information

  • Nw Of The Wide West Mine

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation

Analytical data

Result 0.48 OZ AU/TON, 0.5 OZ AG/TON IN GRAB SAMPLE FROM ORE PILE

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Idaho Batholith-Quartz Monzonite;Dikes-Aplite
    Rock description Idaho Batholith-Quartz Monzonite;Dikes-Aplite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -115.30484, 43.67798
ListMap

Economic information

Ore body information

  • General form LENSES
    Width 0.3M

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Rocky Bar District

Land status

Ownership category Private

Reference information

Bibliographic references

  • Deposit

    Anderson, A. L., 1943, Geology Of The Gold - Bearing Lodes Of Rocky Bar District, Elmore Co., Idaho: Idaho Bureau Of Mines & Geol. Pam. 65, P. 3

  • Deposit

    1943 Geolmap Idaho Bureau Of Mines & Geol. Pam. 6

General comments

Subject category Comment text
Deposit 2 Fault Systems: One Strikes N 20 Deg W, The Other N 80 Deg W

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1975 Steigner, William D. U.S. Geological Survey
Updater 01-SEP-1976 Siefken, Robert R. U.S. Geological Survey
Reporter 13-MAR-1995 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.

Maps centered on this site