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  3. Mineral Resource Data System (MRDS)

Glowworm and Greenhorn

Occurrence in Beaverhead county in Montana, United States with commodities Copper, Tungsten, Molybdenum
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10094332
MRDS ID D004711
Record type Site
Current site name Glowworm and Greenhorn

Geographic coordinates

Geographic coordinates: -112.80228, 45.42129 (WGS84)
Elevation 2210
Relative position 17 MILES NW OF DILLON.

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Twin Adams Mountain(quadrangle 1:24,000 scale)

Dillon(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 005S 010W 02,11 Montana

Comments on the location information

  • ON NORTH FACE OF GREENSTONE MOUNTAIN.

Commodities

Commodity Importance
Copper Primary
Tungsten Critical Secondary
Molybdenum Secondary

Materials information

Materials Type of material
Malachite Ore
Molybdenite Ore
Scheelite Ore
Calcite Gangue
Gypsum Gangue
Quartz Gangue

Analytical data

Result ASSAYS RANGE FROM TRACE TO 0.17% WO3, AND LESS THAN 0.02% MO.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Pioneer Batholith
    Rock description Pioneer Batholith
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Amsden
    Rock description Amsden

Nearby scientific data

(1) -112.80228, 45.42129
ListMap

Economic information

Ore body information

  • Strike N 30 E
    Dip 40 E

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Birch Creek (Utopia) District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner E. Nelson, Et Al, Greenstone Exp. Dillon, Seattle Wa.
    First year 1960

Comments on the workings information

  • EARLY WORKINGS CONSISTED OF SIX ADITS AND FOUR SHAFTS. IN 1952 AND 1953, 5 BULLDOZER TRENCHES AND SEVERAL PITS WERE DUG TO EXPLORE FOR TUNGSTEN MINERALS.

Reference information

Bibliographic references

  • Deposit

    USBM RI 5552, P. 16-18.

  • Deposit

    MBMG BULL 85, P. 88.

General comments

Subject category Comment text
Deposit TACTITE ZONE WAS FIRST EXPLORED FOR COPPER IN 1919. WIDTH OF TACTITE RANGES FROM 30 TO 140 FT.

Reporter information

Type Date Name Affiliation Comment
Reporter 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.

External references

Maps centered on this site