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Blue Cloud

Occurrence in Lewis and Clark county in Montana, United States with commodities 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. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10019443
MRDS ID DC10332
Record type Site
Current site name Blue Cloud

Geographic coordinates

Geographic coordinates: -112.17032, 46.59851 (WGS84)
Location accuracy 500(meters)
Relative position 2.5 MI BY RD N OF US HIGHWAY 10N.

Site location context

Political divisions (FIPS codes)

Lewis and Clark(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Black Mountain(quadrangle 1:24,000 scale)

Elliston(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Missouri(hydrologic unit)

Upper Missouri(hydrologic accounting unit)

Missouri-Marias(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Lewis and Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 010N 005W 25 Montana

Comments on the location information

  • ON BLUE CREEK RD NEAR OLD DOMINION MINE.

Commodities

Commodity Importance
Tungsten Critical Primary
Molybdenum Primary

Materials information

Materials Type of material
Scheelite Ore
Calcite Gangue
Quartz Gangue

Analytical data

Result 0.01% WO3, 0.02% MO

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Butte Quartz Monzonite (Boulder Batholith)
    Rock description Butte Quartz Monzonite (Boulder Batholith)
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Belt Series
    Rock description Belt Series

Nearby scientific data

(1) -112.17032, 46.59851
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Controls for ore emplacement

  • Tactite

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Blue Cloud District

Comments on the workings information

  • 13 FT SHAFT SUNK IN 1880'S REOPENED IN 1950.

Reference information

Bibliographic references

  • Deposit

    USBM RI 6334, P. 5, 25, 26

General comments

Subject category Comment text
Deposit SCHEELITE IS ASSOCIATED WITH TACTITE ALONG A QUARTZ MONZONITE-LIMESTONE CONTACT TRENDING N 10 W. SCHEELITE WAS NOT OBSERVED IN LIMESTONE OR IN THE GRANITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-JAN-1982 Wise, Kristine K. (Elliott, James E.) 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