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Goldfinch Group

Past Producer in Beaverhead county in Montana, United States with commodities Silver, Lead, Gold, Copper, Zinc
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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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Production statistics
  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 10070480
MRDS ID W013430
Record type Site
Current site name Goldfinch Group
Related records 10123755

Geographic coordinates

Geographic coordinates: -112.90061, 45.30768 (WGS84)
Elevation 2078
Relative position 2.5 AIR MILES NW OF ARGENTA

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ermont(quadrangle 1:24,000 scale)

Dillon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beaverhead(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Beaverhead-Deerlodge 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 Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 006S 011W 13 Montana

Comments on the location information

  • SW 1/4, SECTION 13

Commodities

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

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation, Gouge Zone

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Missoula
    Rock description Missoula

Economic information

Ore body information

  • General form LENS
    Strike NORTH - SOUTH
    Dip 75 E
    Length 1000M
    Width 15M

Controls for ore emplacement

  • Lenses Localized Along Shear Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1885
Discoverer A. V. Clark

Mining district

District name Argenta District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Russell, H. C.
    Home office Seattle, Washington

Production statistics

  • Year 1954
    Period 1902 - 1954
    Material AU
    Accuracy Accurate
    Description Cp_Grade: ^0.59 Oz/St
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 17g/mt
  • Year 1954
    Period 1902 - 1954
    Material PB
    Accuracy Accurate
    Description Cp_Grade: ^2.5 %
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Lead Lead 3wt-pct
  • Year 1954
    Period 1902 - 1954
    Material AG
    Accuracy Accurate
    Description Cp_Grade: ^7 Oz/St
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 198g/mt

Comments on the production information

  • MOST OF THE ORE FROM THE GROUP WAS PRODUCED BETWEEN 1932 AND 1937

Workings at the site

  • Type of workings Underground
    Overall depth 70M

Comments on the workings information

  • DEPOSIT HAS BEEN WORKED BY SEVERAL SHAFTS. THE DEEPEST AT 220 FT WAS THE MEADOW LARK, BUT ALL ARE REPORTED CAVED (1972) EXCEPT GARDNER SHAFT (90 FT.)

Comments on development

  • GOLDFINCH GROUP CONSISTS OF GOLDFINCH, JACK, DOLPHIN, HARMON, SUNNY DAY, SOUTHSIDE, GOLDEN CROWN, BIG LODE, CALDEONIA, THREE CHEERS, AND ALL NATIONS, UNPATENTED CLAIMS.

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 85

  • Deposit

    1972 COMPILE M.B.M.G. BULL. 8

  • Production

    GEACH, 1972, MBMG BULL. 85

General comments

Subject category Comment text
Deposit Discovery Year: 1880'S
Deposit ORE LENSES RANGE FROM .3 TO 5 M WIDE, AND RAKE TO THE NORTH AT 65 DEG.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1976 Mlynarczyk, Meg S.; Krohn, D. U.S. Geological Survey
Updater 01-JUL-1980 Loen, Jeffrey S. (Pearson, Robert C.) U.S. Geological Survey

Beyond USGS

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

Maps centered on this site