Free Speech Mine

Producer in Lewis and Clark county in Montana, United States with commodities Lead, Silver, Gold, Arsenic
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. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10108516
MRDS ID DC11443
Record type Site
Current site name Free Speech Mine
Alternate or previous names Free Speech No. 1 Mine

Geographic coordinates

Geographic coordinates: -112.24256, 46.47407 (WGS84)
Relative position 2.1 KM NW OF RED MOUNTAIN.

Site location context

Political divisions (FIPS codes)

Lewis and Clark(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chessman Reservoir(quadrangle 1:24,000 scale)

Butte North(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)

Federal lands

Helena-Lewis and Clark 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 Lewis and Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008N 005W 04 Montana

Comments on the location information

  • 1.5 KM SSE OF RIMINI. ; INFO FROM LAND.ST :(1950)

Commodities

Commodity Importance
Lead Primary
Silver Primary
Gold Secondary
Arsenic Critical Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Pyrite Gangue
Quartz Gangue

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) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -112.24256, 46.47407

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith
Type of structure Local
Structure description Red Mountain Fault

Ore body information

  • General form PINCH AND SWELL
    Strike N 83 E
    Dip 77 S
    Width 1.83M

Comments on the geologic information

  • THIS VEIN APPARENTLY CONTAINS A POD OF ARSENOPYRITE THAT DOES NOT REACH THE LEVEL OF RED MOUNTAIN TUNNEL.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Rimini District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Thompson, T. L.
    Home office Box 1435, Anaconda, Mt. 59711
  • Type Owner
    Owner Red Mountain Consolidated Mining Co.
    Home office St. Paul, Mn. 55100

Comments on the production information

  • SOME PRODUCTION

Comments on the workings information

  • 2 ADITS, SHAFT

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THE ORE IS MOSTLY GALENA CONTAINING AU AND AG IN A GANGUE OF COARSE MILKY QUARTZ, ALTERED WALLROCK AND SOME FINE-GRAINED QUARTZ AND CHALCEDONEY.
Deposit RED MOUNTAIN TUNNEL INTERSECTS THE FREE SPEECH VEIN 2260 FROM ITS PORTAL. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-OCT-1981 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.