Moreau

Past Producer in Jefferson county in Montana, United States with commodities Gold, Iron
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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Mineral rights holdings
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Reserves and resources
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10148997
MAS/MILS ID 0300430545
Record type Site
Current site name Moreau
Alternate or previous names East Butte, Elkhorn (East Butte), Pittsmont, Elkhorn (Swissmont)

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -111.94977, 46.2766 (WGS84)
Elevation 1999
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Elkhorn(quadrangle 1:24,000 scale)

Townsend(quadrangle 1:100,000 scale)

White Sulphur Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boulder(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(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 Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 006 N 003 W 14 SENWNW Montana

Commodities

Commodity Importance
Gold Primary
Iron Tertiary

Materials information

Materials Type of material
Gold Unknown
Hematite Unknown
Limonite Unknown
Magnetite Unknown
Pyrite Unknown
Quartz Unknown

Mineral occurrence model information

Model code 64
USGS model code 18f
Deposit model name Skarn Au
Mark3 model number 82

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock type qualifier dolomitic limestone
    Rock unit name PILGRIM dolomite, RED LION FM., RED SHALES & ARGIL. dolomite
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock type qualifier QUARTZ MONZONITE;DIORITE; GABBRO AND DIORITE
    Rock unit name BOULDER BATHOLITH; CEMETERY RIDGE STOCK; BLACK BUTTE STOCK

Nearby scientific data

Main Entrance (1) -111.94977, 46.2766

Economic information

Ore body information

  • Strike N05E
    Dip 65E
    Thickness 100M
    Length 46M
    Width 10M
    Area 2HA
    Depth to top 61M
    Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin CONT METASOMATIC
    Primary Ore Control CONTACT ZONE
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 SILICIFICATION
    Type of Wallrock Alter. #2 PYRITIZATION
    Strike And Dip N05E:65E
    Minimum Depth to Top 61
    Avg. Thick. Unconsol. Mat. 7
    Min. Thick. Unconsol. Mat. 3
    Total Surface Area (HA) 2
    Date of Last Modification 830316

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant Yes
Discovery year 1909
Year of first production 1909

Mining district

District name Elkhorn Mining District

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Siskon Corp
    Interest 100
    Home office Montana
    Year 1977

Production statistics

  • Year 1939
    Period 1909-1939
    Material ore
    Ore mined 69600mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Au Gold Gold 512181.02g

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Total resources 1400000mt ore

Comments on the workings information

  • A 175-TON CYANIDE MILL ON PROPERTY HAS BEEN DISMANTLED

Reference information

Bibliographic references

  • Deposit

    JEFFERSON COUNTY COURTHOUSE RECORDS

  • Deposit

    ALSO LOCATED IN SECTION 11

Reporter information

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

Beyond USGS

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

External references