Iron Mask Mine

Past Producer in Beaverhead county in Montana, United States with commodities Silver, Lead, Copper, Zinc
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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10101971
MRDS ID DC09253
Record type Site
Current site name Iron Mask Mine

Geographic coordinates

Geographic coordinates: -112.94756, 45.18879 (WGS84)
Elevation 2012
Relative position 3 AIR MILES NE OF BANNACK

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bannack(quadrangle 1:24,000 scale)

Dillon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beaverhead(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 007S 011W 28 SE OF SE Montana

Commodities

Commodity Importance
Silver Primary
Lead Primary
Copper Primary
Zinc Critical Secondary

Materials information

Materials Type of material
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) Granitic rock

Economic information

Ore body information

  • Depth to top 0M

Controls for ore emplacement

  • Fissure Zone

Comments on the geologic information

  • GEOL.DESC: MN, FE OXIDES; CALCITE AND QUARTZ GANGUE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1934-35, 1942

Mining district

District name Blue Wing District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Constance Crawford

Comments on the production information

  • ACTUAL PRODUCTION FIGURES ARE CONFIDENTIAL

Workings at the site

  • Type of workings Underground
    Overall depth 60.96M

Comments on the workings information

  • ONE SHAFT, REPORTEDLY 200-FT DEEP.

Comments on development

  • ONE PATENTED CLAIM

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit WELL DEFINED VEINS EXPOSED AT SURFACE. OXIDIZED ORE NEAR SURFACE BUT SULFIDES ARE REPORTED AT DEPTH. VEIN ON SURFACE RESEMBLES THE DEL MONTE VEINS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-JUL-1980 Loen, Jeffrey S. (Pearson, Robert C.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references