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  3. Mineral Resource Data System (MRDS)

Big Ledge Mine

Past Producer in Churchill county in Nevada, United States with commodities 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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10045369
MRDS ID M233078
Record type Site
Current site name Big Ledge Mine

Geographic coordinates

Geographic coordinates: -118.18207, 39.19685 (WGS84)
Elevation 1884
Location accuracy 100(meters)
Relative position ABOUT 4.5 MILES SOUTH FAIRVIEW

Site location context

Political divisions (FIPS codes)

Churchill(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bell Canyon(quadrangle 1:24,000 scale)

Fallon(quadrangle 1:100,000 scale)

Reno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Dixie Valley(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

DOD(Federal land areas administered by DOD)

Geographic areas

Country State County
United States Nevada Churchill

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 015N 034E 03,04 Nevada

Comments on the location information

  • 0.5 MILE SOUTH OF MIZOAJ MINE,. UNSURVEYED AREA. SECTIONS PROJECTED. ; INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Silver Primary
Gold Primary

Materials information

Materials Type of material
Argentite Ore
Cerargyrite Ore
Stephanite Ore
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification

Mineral occurrence model information

Model code 150
USGS model code 25c
Deposit model name Epithermal vein, Comstock
Mark3 model number 16

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -118.18207, 39.19685
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Nne-Trending Range-Front Faults
Type of structure Local
Structure description Sheeting, Strikes N75e, Dip 805

Ore body information

  • General form TABULAR
    Dip 805 TO VERTICAL
    Thickness 30.48M
    Length 914.4M
    Width 6.1M

Controls for ore emplacement

  • Fault Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1906
Discoverer John Horgan And R.L. D'Airy

Mining district

District name Fairview District

Land status

Ownership category BLM Administrative Area

Production statistics

  • Year 1909
    Material ORE AG AU
    Accuracy Accurate
    Description Ap_Grade: ^9402/T Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 2654g/mt

Workings at the site

  • Type of workings Underground
    Length 762M

Comments on the workings information

  • TUNNELS, DRIFTS

Comments on development

  • LATER IN 1906, THE 5 CLAIMS WERE PURCHASED BY W.4-DAVIS WHO IN 1909 SHIPPED 30 TS ORE BY 1913 OVER 20 TONS ORE HAD BEEN SHIPPED. IN 1916 W.M. JENNER OF GOLDFIELD AND IN 1918 HE SHIPPED 6 TONES ORE. IN 1920 THERE WERE 10 OR MORE MERCLAIMS DEVELOPED BY TUNNELS AND DRIFTS. IN 1920 ABOUT 2500 FT OF WORKINGS EMSTED.

Reference information

Bibliographic references

  • Deposit

    SCHRADER, F.C., 1947, REPORT ON THE CARSON SINK AREA; USGS OF

General comments

Subject category Comment text
Deposit DEPOSIT SIZE IS 1.25 MI LONG BY 0.5 MILE WIPE. IT IS A FAULT-FISSURE VEIN WITH GREENISH QUARTZ AND CALLITE, WHICH HAS BEEN MORE OR LESS CRUSHED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-81 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.