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Garnet (First Chance)

Past Producer in Granite county in Montana, United States with commodities Gold, Silver, Copper, Lead, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Mineral occurrence model information
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Production statistics
  11. Reserves and resources
  12. Bibliographic references

Geologic information

Identification information

Deposit ID 10400192
Record type Site
Current site name Garnet (First Chance)

Geographic coordinates

Geographic coordinates: -113.34393, 46.82689 (WGS84)

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Elevation Mountain(quadrangle 1:24,000 scale)

Missoula East(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Blackfoot(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management MT)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Montana Granite

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary
Lead Secondary
Zinc Critical Secondary

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47
Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) -113.34393, 46.82689
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Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant Yes
Discovery year 1867
Year of first production 1867
Year of last production 1955

Mining district

District name Garnet (First Chance)

Production statistics

  • Year 1955
    Period 1867-1955
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Au Gold Gold 3519016.73g
    Minor Zn Zinc Zinc 791.06mt
    Major Cu Copper Copper 75613.39mt
    Major Ag Silver Silver 3171373.12g
    Minor Pb Lead Lead 3375.63mt

Comments on the production information

  • Production total is aggregated for more than 20 mines occurring within a four square mile area. More than 150,000 oz of the Au resource occurs in skarn zone adjacent to the Nancy Hanks zone. (USGS Headwaters Project significant-deposit list.)

Reserves and resources

  • Type In-situ
    Estimate year 2001
    Total resources 6349000mt ore
  • Type In-situ
    Name Au
    Estimate year 2001
    Total resources 19mt ore

Reference information

Bibliographic references

  • Reserve-Resource

    Iron Mask Mining 2001 SEC Form 10K

  • Production

    Kauffman and Earll, 1963

Beyond USGS

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

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