Mountain Chief Mine

Producer in Boise county in Idaho, United States with commodities Gold, Silver, Zinc, Lead, Antimony, Bismuth
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. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10069864
MRDS ID W007601
Record type Site
Current site name Mountain Chief Mine
Related records 10168321

Geographic coordinates

Geographic coordinates: -116.02902, 43.93766 (WGS84)
Elevation 1829
Relative position 2 1/2 MI SW OF QUARTZBURG

Site location context

Political divisions (FIPS codes)

Boise(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Harris Creek Summit(quadrangle 1:24,000 scale)

Boise(quadrangle 1:100,000 scale)

Boise(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boise-Mores(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 Boise

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 007N 004E 18,17 Idaho

Comments on the location information

  • HEAD OF CANYON CR. W. OF BELSHAZZAR GROUP

Commodities

Commodity Importance
Gold Primary
Silver Primary
Zinc Critical Tertiary
Lead Tertiary
Antimony Critical Tertiary
Bismuth Critical Tertiary

Comments on the commodity information

  • SEVERAL BUNCHES OF ORE ASSAYED AS MUCH AS $100/TON.

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Stibnite Ore
Bismuth Gangue
Calcite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidized

Analytical data

Result ORE REPORTED TO ASSAY 0.53 OZ AU. ARSENOPYRITE SAMPLE ASSAYED 1.36 OZ AU, 0.70 OZ. AG, 2% BI, 0.3% PB, 0.6% SB

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Rhyolite Porphyry
    Rock description Rhyolite Porphyry
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -116.02902, 43.93766

Economic information

Geologic structures

Type of structure Local
Structure description Gouge Filling

Ore body information

  • General form BUNCHES, STREAKS, LENSES
    Strike N. 45 DEG E.
    Dip 55 DEG SE.
    Length 121.92M
    Width 1.22M

Controls for ore emplacement

  • Shear Zone, Fissure

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1870
Year of first production 1870

Mining district

District name Boise Basin

Land status

Ownership category National Forest
Area name Boise National Forest

Ownership information

  • Type Owner-Operator
    Owner National Mining And Development Co.

Comments on the production information

  • RECORDED PRODUCTION SLIGHTLY OVER $240,000 AND AN ADDITIONAL ESTIMATED PRODUCTION CLOSE TO $70,000 UNDER A FORMER MANAGEMENT.

Workings at the site

  • Type of workings Underground
    Length 792.48M
    Overall depth 115.82M

Comments on the workings information

  • 5 ADIT DRIFTS

Comments on development

  • 11 UNPATENTED CLAIMS. AERIAL TRAM; MILL; 30 - TON AMALGAMATION PLANT

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1975 Murphy, Lyn S. U.S. Geological Survey

Beyond USGS

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