Comet Group

Past Producer in Beaverhead county in Montana, United States with commodities Silver, Gold, Copper, Lead, Zinc
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10042796
MRDS ID M060829
Record type Site
Current site name Comet Group
Related records 10171990

Geographic coordinates

Geographic coordinates: -113.04728, 45.45822 (WGS84)
Elevation 2682
Relative position 7 MILES NNE OF POLARIS, MONTANA

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Elkhorn Hot Springs(quadrangle 1:24,000 scale)

Salmon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Hole(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 004S 012W 26,27 Montana

Comments on the location information

  • 1:24000 QUADRANGLE MAP IS A 1959 EDITION

Commodities

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

Comments on the commodity information

  • ORE WAS OXIDIZED TO AT LEAST 600 FT. BELOW SURFACE.

Materials information

Materials Type of material
Tetrahedrite Ore

Analytical data

Result CRUDE ORE SHIPPED IN 1969 CONTAINED .01 OZ AU AND 12 OZ AG/TON, 0.13% CU

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -113.04728, 45.45822

Economic information

Geologic structures

Type of structure Local
Structure description Comet Fault, Pioneer Batholith

Ore body information

  • General form TABULAR
    Strike N 55 E
    Dip 75 N
    Plunge direction SW
    Thickness 3.05M
    Length 60.96M
    Depth to top 0M
    Depth to bottom 60.96M

Economic information about the deposit and operations

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

Mining district

District name Elkhorn District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Georesources Inc.
    Home office Williston, Nd
    First year 1976
  • Type Owner
    Owner Blue Sky Mining Corp.

Production statistics

  • Year 1970
    Period 1960 - 1970
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^0.01 Oz Au/T, 27.43 Oz Ag/T, 0.3 % Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Copper Copper 0wt-pct
    Major Ore Silver Silver 775g/mt
    Minor Ore Gold Gold 0g/mt

Comments on the production information

  • OLD UNPUBLISHED REPORTS INDICATE EARLY, UNRECORDED, PRODUCTION WAS PRIOR TO 1900. PRODUCTION IN 1960 - 1964 & 1969 - 1970.

Workings at the site

  • Type of workings Unknown
    Length 762M
    Overall depth 182.88M
    Overall length 48.77M

Reference information

Bibliographic references

  • Deposit

    WINCHELL, A.N., 1914, MINING DISTRICTS OF THE DILLON QUADRANGLE, MONTANA AND ADJACENT AREAS: USGS BULL. 574, P. 168-170

  • Deposit

    MBMG BULL 85, P. 107.

  • Deposit

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

  • Production

    OME FILES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1974 Puffett, Willard P. U.S. Geological Survey
Updater 01-AUG-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.