1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Big Mouth

Past Producer in Washoe 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. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10043840
MRDS ID M231126
Record type Site
Current site name Big Mouth

Geographic coordinates

Geographic coordinates: -119.42739, 39.77683 (WGS84)

Site location context

Political divisions (FIPS codes)

Washoe(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pah Rah Mountain(quadrangle 1:24,000 scale)

Reno(quadrangle 1:100,000 scale)

Reno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Pyramid-Winnemucca Lakes(hydrologic unit)

Truckee(hydrologic accounting unit)

Central Lahontan(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

Bureau of Land Management NV BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Washoe

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 022N 023E 17,18 Nevada

Comments on the location information

  • IN BIG MOUTH CANYON PAH RAH RANGE

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Hematite Ore
Jarosite Ore
Pyrite Ore
Calcite Gangue

Alteration

  • (Local) Propylization

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) > Pyroclastic Rock > Tuff > Ash-Flow Tuff
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -119.42739, 39.77683
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Nne-Trending Fault Zones.

Controls for ore emplacement

  • Breccia Zone

Economic information about the deposit and operations

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

Mining district

District name Olinghouse (White Horse) District

Land status

Ownership category Private

Comments on the workings information

  • PROPERTY LOCATED ABOUT 1860 (OVERTON, P 72), HAS PRODUCED SMALL SHIPMENTS OF SELECTED ORE. WORKINGS EXPLORE NORTHERLY TRENDING MINERALIZED FAULT ZONES IN WELDED ASH FLOW TUFFS. IN SEC 17, MINERALIZED ZONES CONSIST OF A NETWORK OF QUARTZ VEINLETS IN PROPYLITIZED, BRECCIATED, WELDED TUFF, ZONES VARY FROM 5-15' IN WIDTH

Reference information

Bibliographic references

  • Deposit

    BONHAM, HF, GEOL & MIN DEP, WASHOE, STOREY CO, NEVADA, NBMG BULL 70, 1969

  • Deposit

    OVERTON, TD, MIN RESOURCES, DOUGLAS, ORMSBY, WASHOE, CO, NEV NBMG BULL 46, 1947

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1978 Tingley, J.V. Nevada Bureau of Mines and Geology

Beyond USGS

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

External references

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.