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  3. Mineral Resource Data System (MRDS)

Big Ledge Group

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

Geologic information

Identification information

Deposit ID 10045263
MRDS ID M232959
Record type Site
Current site name Big Ledge Group

Geographic coordinates

Geographic coordinates: -115.41368, 40.99408 (WGS84)
Elevation 2057
Relative position 2 1/2 MILES NE OF JARBRIDGE

Site location context

Political divisions (FIPS codes)

Elko(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Halleck(quadrangle 1:24,000 scale)

Elko(quadrangle 1:100,000 scale)

Elko(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Humboldt(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Elko

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 046N 058E 02;11;10 Nevada

Comments on the location information

  • 1 1/2 MILE UP CREEK FROM JUNCTION WITH EAST FORK

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Analytical data

Result VEIN AGERAGED $6.50 IN GOLD, 4 OZ./TON AG. IN 1910

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Jarbidge Rhyolite
    Rock description Jarbidge Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Jarbirdge Rhyolite
    Rock description Jarbirdge Rhyolite

Nearby scientific data

(1) -115.41368, 40.99408
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Faults.

Ore body information

  • General form TABULAR
    Strike NW
    Dip 60 85 SW
    Length 804.65M
    Width 2.74M

Controls for ore emplacement

  • Faults

Comments on the geologic information

  • VEIN IS COMPOSED OF THE LAMINATED QUARTZ CHARADTERIRSTIC OF THE DISTRICT. VEIN IS UP TO 9 FT. WIDE ORE IS LESS "FREE-MILLING" THAN ANY OTHER ORES OF THE CRATER SYSTEM.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1910
Discoverer A.E. Bettles Of Jarbidge

Mining district

District name Jarbidge District

Land status

Ownership category National Forest

Comments on the production information

  • VEIN AVERAGED $6.50/TON IN AU; 4OZ/TON AG IN 1910.

Workings at the site

  • Type of workings Underground
    Length 12.19M

Comments on the workings information

  • TUNNEL OR DRIFT

Reference information

Bibliographic references

  • Deposit

    SCHRADER, F.C., (1912), A RECONNAISSANCE OF THE JARBRIDGE, CONTACT, AND ELK MOUNTAIN MINING DISTRICTS, ELKO COUNTY, NEVADA: U.S.G.S. BULL. 497

  • Production

    SCHRADER, F.C., (1912)

General comments

Subject category Comment text
Deposit BIG LEDGE VEIN
Deposit 5 CLAIMS DISCOVERED IN 1910 BY A.E. BETTLES OF JARBRIDGE. DEVELOPMENT IN 1910 COSISTED OF A 40. FT. TUNNEL OR DRIFT AND TERMINAL CROSSCUTS ON THE BIG LEDGE VEINWHICH HAS A KNOWN EXTENT OF ABOUT HALF A MILE. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1981 La Pointe, D. D. Nevada Bureau of Mines and Geology

Beyond USGS

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

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.