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North Star

Past Producer in Granite county in Montana, United States with commodities Copper, Silver, Tungsten
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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. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10102040
MRDS ID DC11568
Record type Site
Current site name North Star

Geographic coordinates

Geographic coordinates: -113.28564, 46.33656 (WGS84)
Location accuracy 250(meters)
Relative position ABOUT 0.7 KM NE OF PHILIPSBURG.

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Philipsburg(quadrangle 1:24,000 scale)

Philipsburg(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Flint-Rock(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Montana Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 007N 014W 25 Montana

Comments on the location information

  • SW SLOPE OF POORMAN HILL.

Commodities

Commodity Importance
Copper Primary
Silver Primary
Tungsten Critical Tertiary

Materials information

Materials Type of material
Powellite Ore
Scheelite Ore

Analytical data

Result 4-7% CU, 1.7 OZ/TON AG

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Jefferson Limestone;Maywood Formation
    Rock description Jefferson Lst;Maywood Formation
    Stratigraphic age (youngest) Late Devonian

Nearby scientific data

(1) -113.28564, 46.33656
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Philipsburg Batholith
Type of structure Local
Structure description Philipsburg Anticline, Philipsburg Overthrust

Economic information about the deposit and operations

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

Mining district

District name Philipsburg (Granite-Flint Creek) District

Comments on the production information

  • 4.0-7.0 CU, 1.7 OZ/TON AG

Comments on the workings information

  • 75 FT ADIT, 260 FT ADIT, 425 FT ADIT, 2 CAVED SHAFTS AND A SHORT ADIT N OF ADIT 2. BULLDOZER CUTS, ONE CUT ALMOST TAKES AWAY ADIT 1.

Reference information

Bibliographic references

  • Deposit

    USBM RI 5612, P. 21, 23, 24

  • Production

    USBM RI 5612, P. 21.

General comments

Subject category Comment text
Deposit BEDDING STRIKES NE AND DIPS 35 NW. SCHEELITE AND POWELLITE ARE DISSEMINATED THROUGH A GANGUE OF ALTERED SEDIMENTARY ROCK AND AS SMALL PODS ERRATICALLY DISTRIBUTED IN AND ALONG FRACTURES IN THE JEFFERSON FM. MINERALIZATION MAY FOLLOW THE MAYWOOD-JEFFERSON CONTACT OR FRACTURES THAT INTERSECT IT. A 4 FT IRON-STAINED, VUGGY, VERTICAL QUARTZ VEIN STRIKING W AND CONTAINING DISSEMINATED SCHEELITE, WAS EXPOSED IN SHORT ADIT N OF ADIT 2.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-74 Unknown U.S. Geological Survey
Updater 01-MAR-82 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.

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