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  3. Mineral Resource Data System (MRDS)

Big Six Mine

Past Producer in Fergus county in Montana, United States with commodity Gold
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10071311
MRDS ID W014638
Record type Site
Current site name Big Six Mine
Alternate or previous names Mcevany Group
Related records 10148489

Geographic coordinates

Geographic coordinates: -109.24162, 47.11075 (WGS84)
Elevation 1623
Relative position ABOUT 10 MILES NE OF LEWISTOWN, MONTANA

Site location context

Political divisions (FIPS codes)

Fergus(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Horsethief Coulee West(quadrangle 1:24,000 scale)

Lewistown(quadrangle 1:100,000 scale)

Lewistown(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Box Elder(hydrologic unit)

Musselshell(hydrologic accounting unit)

Missouri-Musselshell(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Fergus

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 016N 020E 31 Montana

Commodities

Commodity Importance
Gold Primary

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Madison Series, Massive Limestone
    Rock description Madison Series, Massive Limestone
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Mississippian

Nearby scientific data

(1) -109.24162, 47.11075
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Judith Mts - Domal Structures Intruded By Cret-Tert. Lacoliths

Controls for ore emplacement

  • Ore Found Along Or Near Contact Of Limestone And Syenite Porphyry.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Warm Springs District

Ownership information

  • Type Owner
    Owner Wesley Mcevany, Judith Gap, Montana

Comments on the reserve resource information

  • LARGE QUANTITIES OF LOW-GRADE ORE REMAIN IN MINE

Comments on the workings information

  • AT ONE TIME 3900 FT. TRAMWAY CONNECTED THIS WITH WISKEY GULCH MILL, WHERE ORE WAS TREATED.

Comments on development

  • ECON.COM: MINE CLOSURE ATTRIBUTED TO LACK OF WATER FOR THE MILL AND HIGH OPERATING COSTS.

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1976 Mlynarczyk, Meg S. U.S. Geological Survey

Beyond USGS

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

External references

Maps centered on this site