Dark Horse Mine

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

Geologic information

Identification information

Deposit ID 10070395
MRDS ID W013304
Record type Site
Current site name Dark Horse Mine
Alternate or previous names Darkhorse
Related records 10172312

Geographic coordinates

Geographic coordinates: -113.58924, 45.16711 (WGS84)
Elevation 2774
Relative position 16 MILES SW OF JACKSON

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Goldstone Pass(quadrangle 1:24,000 scale)

Salmon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Hole(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 Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008S 016W 05 Montana

Comments on the location information

  • 1/2 MILE NW OF DARK HORSE LAKE

Commodities

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

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Hematite Gangue
Limonite Gangue
Malachite Gangue
Quartz Gangue

Analytical data

Result 30% CU PLUS AU AND AG VALUES

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Lemhi
    Rock description Lemhi
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -113.58924, 45.16711

Economic information

Ore body information

  • General form STRINGERS
    Width 0.61M

Controls for ore emplacement

  • Fissure Zone, Bedding Plane

Economic information about the deposit and operations

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

Mining district

District name Beaverhead Range

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Cannon, Laura
    Home office Fallbrook, Ca
    First year 1972

Comments on the production information

  • INCOMPLETE PRODUCTION DATA-PRODUCTION IN 1906 WAS AN ADDITIONAL 12 ST/ORE PER WEEK.

Workings at the site

  • Type of workings Underground
    Length 1219.2M

Comments on the workings information

  • WORKINGS CONSIST OF A TUNNEL 2935 FT. LONG, PENETRATING DIVIDE 800 FT. BELOW CREST; MAIN SHAFT SEVERAL HUNDRED FEET DEEP, AND THREE SHORT ADITS.

Comments on development

  • IN 1909 AND LATER, A LONG TUNNEL WAS DRIVEN THROUGH THE DIVIDE TO ALLOW ORES TO BE SHIPPED TO THE LEMHI VALLEY. ; ECON.COM: HIGH ALTITUDE

Reference information

Bibliographic references

  • Deposit

    USGS BULL. 528.

  • Deposit

    BELL, ROBERT N., 1906, SEVENTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1905, P. 88.

  • Deposit

    USGS BULL 574, P. 77.

  • Deposit

    MBMG BULL 85, P. 35.

  • Deposit

    1906 COMPILE IDAHO MINE - INSPECTOR'S ANNUAL REPORT FOR 1905

  • Deposit

    1913 GEOLMAP UMPLEBY; BULL. 528

  • Deposit

    1914 COMPILE WINCHELL; BULL. 574

  • Deposit

    1972 COMPILE M.B.M.G. BULL. 85

  • Production

    M.B.M.G. BULL. 85

General comments

Subject category Comment text
Deposit WEAK BEDDING-PLANE QUARTZ VEIN 1 TO 2 FT. WIDE IS EXPOSED IN 2 ADITS 200 FT. NORTH OF THE MAIN SHAFT. BEDDING TRENDS N62W, 35 SW

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Bainbridge, Terri L.; Miller, Pat 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