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Bulwer Mine

Past Producer in Jefferson county in Montana, United States with commodities Copper, Lead, Zinc, Silver, 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. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  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 10042786
MRDS ID M060814
Record type Site
Current site name Bulwer Mine
Alternate or previous names Elkhorn-Bulwer, Boulaway
Related records 10294731

Geographic coordinates

Geographic coordinates: -111.94254, 46.25823 (WGS84)
Elevation 1829
Relative position 1 MILE S. OF ELKHORN, MONTANA

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 006N 003W 23 Montana

Commodities

Commodity Importance
Copper Primary
Lead Secondary
Zinc Critical Secondary
Silver Secondary
Gold Tertiary

Materials information

Materials Type of material
Chrysocolla Ore
Malachite Ore
Pyrite Gangue

Alteration

  • (Local) Brecciation, Thermal Metamorphism-Development Of Calc-Silicate Minerals-Clay And Sericite

Analytical data

Result GRAB SAMPLES ASSAYED 0.01 OZ AU AND 0.6 OZ AG/TON, 0.4% CU, 0.35% PB, 0.5% ZN

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Turnley Ridge Stock-Quartz Diorite Porphyry
    Rock description Turnley Ridge Stock-Quartz Diorite Porphyry
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Middle Cambrian
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Meagher Limestone-Limestone, Calcareous Shale
    Rock description Meagher Limestone-Limestone, Calcareous Shale

Nearby scientific data

(1) -111.94254, 46.25823
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description North Plunging Anticline

Ore body information

  • General form IRREGULAR
    Strike N 5 DEG W
    Dip 60 SW
    Width 7.62M
    Depth to top 0M
    Depth to bottom 54.86M

Controls for ore emplacement

  • Contact Between Limestone And Diorite

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1914

Mining district

District name Elkhorn Mining District

Ownership information

  • Type Operator
    Owner Boe, Norman
  • Type Operator
    Owner Curtiss, Kenneth

Workings at the site

  • Type of workings Unknown
    Length 289.56M
    Overall depth 54.86M

Comments on the workings information

  • MINE DEVELOPED BY 2 ADITS, 410 FT. AND 150 FT. LONG, PLUS TWO SHAFTS, 180 FT. DEEP AND 155 FT. DEEP. 348 FT. OF DRIFT AND CROSSCUT FROM BOTTOM OF 155 FT. SHAFT AND 40 FT. DRIFT FROM BOTTOM OF 180 FT. SHAFT

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MUCH SURFACE COPPER STAIN ALONG CONTACT BUT EXPLORATION HAS FAILED TO FIND ORE AT DEPTH

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Puffett, Willard P. U.S. Geological Survey

Beyond USGS

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

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