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  3. Mineral Resource Data System (MRDS)

Eureka

Past Producer in Lewis and Clark county in Montana, United States with commodities Gold, Lead, Silver, Zinc
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10124913
MAS/MILS ID 0300490112
Record type Site
Current site name Eureka

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -112.23778, 46.473 (WGS84)
Elevation 1902
Location accuracy 10(meters)

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 008 N 005 W 04 NENESW Montana

Commodities

Commodity Importance
Gold Tertiary
Lead Tertiary
Silver Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Galena Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Main Entrance (1) -112.23778, 46.473
ListMap

Economic information

Ore body information

  • Strike N70E
    Dip 80S
    Thickness 61M
    Length 76M
    Width 0.6M
    Area 2.2HA
    Depth to top 4M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 INTERM ARGILLIC
    Strike And Dip N70E:80S
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 4
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 2.2
    Date of Last Modification 830316

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Rimini

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category National Forest

Comments on the reserve resource information

  • GRADES ARE AVERAGES FROM GRAB SAMPLES FRO TN MINE DUMP TONNAGES ARE ESTIMATES OF INVESTIGATOR,SEE BACKUP

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Montana Bureau Of Mines And Geology Hgm U.S. Bureau of Mines

Beyond USGS

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

External references

Maps centered on this site