Mitchell Mine

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

Geologic information

Identification information

Deposit ID 10019607
MRDS ID DC10931
Record type Site
Current site name Mitchell Mine

Geographic coordinates

Geographic coordinates: -113.26425, 46.33683 (WGS84)
Elevation 1798
Relative position 2.2 KM E 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)

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 Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 007N 013W 29,30 Montana

Comments on the location information

  • IN TOWER BETWEEN THE SILVER CHIEF AND SAN FRANCISCO MINES, EAST SLOPE.

Commodities

Commodity Importance
Silver Primary
Gold Primary
Lead Secondary
Manganese Critical Secondary
Zinc Critical Secondary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Silver Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue
Rhodochrosite Gangue

Alteration

  • (Local) Oxidation

Analytical data

Result ORE 15-20% PB, 35 OZ/TON AG, $3-4/TON AU.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Philipsburg Batholith
    Rock description Philipsburg Batholith
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -113.26425, 46.33683

Economic information

Geologic structures

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

Ore body information

  • General form TABULAR, VEINLETS
    Strike N74E
    Dip 66 S
    Thickness 0.3M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years PRE-1907

Mining district

District name Philipsburg (Granite-Flint Creek) District

Ownership information

  • Type Owner
    Owner Mr. Larry Donlan

Comments on the production information

  • $11000 ORE (1906).

Workings at the site

  • Type of workings Underground
    Length 243.84M

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit NEAR SURFACE OXIDIZED ORE CARRIES SOME NATIVE AG. PRINCIPLE ORE SHOOT RUNS FROM 30 FT FROM THE PORTAL EAST FOR 170 FT WHERE FISSURE THEN NARROWS TO 6 IN WIDTH. FARTHER E IT BECOMES WIDER AND INCLOSES A LARGE PROPORTION OF ZINC BLENDE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-JAN-1980 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.