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Porcupine Lode

Prospect in Silver Bow county in Montana, United States with commodities Gold, Silver
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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. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10022815
MRDS ID FS00301
Record type Site
Current site name Porcupine Lode

Geographic coordinates

Geographic coordinates: -112.61533, 46.13851 (WGS84)
Elevation 1951

Site location context

Political divisions (FIPS codes)

Silver Bow(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lockhart Meadows(quadrangle 1:24,000 scale)

Butte North(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(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 Silver Bow

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 005N 008W 31 Montana

Commodities

Commodity Importance
Gold Tertiary
Silver Tertiary

Comments on the commodity information

  • NO MINERAL OF SUBSTANTIAL VALUE WAS FOUND BY CLAIMANT OR MINERAL EXAMINER

Materials information

Materials Type of material
Gold Ore

Analytical data

Result ASSAY REPORT
Result AU .01 OZ/TON AG - 0.2 OZ/TON

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -112.61533, 46.13851
ListMap

Economic information

Comments on the geologic information

  • THE VOLCANIC FLOWS OVERLIE THE BOULDER BATHOLITH. CHARACTER OF THE EXTRUSIVES ARE NONMINERAL UNLESS INTRUDED BY DIKES OR VEINS WHICH THE ROCK ON THIS CLAIM IS NOT.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No
Discoverer Henry Desjardine

Mining district

District name Boulder Mountains Area

Ownership information

  • Type Owner
    Owner Henry Desjardine

Workings at the site

  • Type of workings Surface/Underground
    Length 9.14M
    Overall length 7.92M

Comments on the workings information

  • THE DISCOVERY CUT RUNS INTO THE POORLY TIMBERED AREA

Reference information

Bibliographic references

  • Deposit

    FS FILES

  • Deposit

    1940 DIREXPL USF

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Steward, Candis A. 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