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Ophir and Dexter Mine

Past Producer in Nye county in Nevada, United States with commodities Silver, Copper, Lead, Zinc
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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. Host and associated rocks
  9. Nearby scientific data
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10044412
MRDS ID M231827
Record type Site
Current site name Ophir and Dexter Mine
Alternate or previous names Rattlesnake Mine, Wiswall Property

Geographic coordinates

Geographic coordinates: -116.3859, 38.44633 (WGS84)
Relative position IN RATTLESNAKE CANYON

Site location context

Political divisions (FIPS codes)

Nye(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Flagstaff Mountain(quadrangle 1:24,000 scale)

Warm Springs(quadrangle 1:100,000 scale)

Tonopah(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Hot Creek-Railroad Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(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 Nye

Public Land Survey System information

Meridian Township Range Section Fraction State
007N 050E Nevada

Comments on the location information

  • LOCATION UNKNOWN. UNSURVEYED TOWNSHIP AND RANGE.

Commodities

Commodity Importance
Silver Primary
Copper Secondary
Lead Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Tetrahedrite Ore

Analytical data

Result THE 25-76 FT INTERVAL OF ONE DRILLHOLE AVERAGED 1-15OZ/TON AG
Result UP TO 2.6% PB
Result 0.1-3.5% CU
Result 0.7-3.7% ZN.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -116.3859, 38.44633
ListMap

Economic information

Controls for ore emplacement

  • No Information

Economic information about the deposit and operations

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

Mining district

District name Tybo District; Keystone Area

Land status

Ownership category Federal

Ownership information

  • Type Operator
    Owner Pinex Mines
    Home office Vancouver, British Columbia, Canada
    First year 1972
  • Type Owner
    Owner W. L. Wiswall And Others.

Comments on the reserve resource information

  • ORE WITHIN 350 FEET OF SURFACE
  • ORES ARE WITHIN 350 FT OF THE SURFACE ON THE DEXTER PROPERTY.

Comments on the workings information

  • WORKINGS CONSIST OF SEVERAL SHAFTS UP TO 150 FT DEEP.

Comments on development

  • IT WAS REPORTED IN 1972 THAT 42 DRILLHOLES HAD REVEALED AN OREBODY OF OVER 800000 TONS OF CU, AG ORE WITHIN 350 FT OF THE SURFACE.

Reference information

Bibliographic references

  • Deposit

    KRAL, V.E., 1951, MINERAL RESOURCES OF NYE CO.: NEV. BUR. OF MINES AND GEOL., BULL. 50, P. 194

  • Deposit

    KLEINHAMPL,F.J.,AND ZIONY, J.I.,(IN PRESS), GEOLOGY AND ORE DEPOSITS OF NORTHERN NYE COUNTY,NEV.; NBMG BULL.

  • Deposit

    EUREKA MINER,FEB.25,1972.

  • Deposit

    FERGUSON,H.G.,1933, NBMG BULL. 20.

  • Production

    KRAL, 1951, P. 194

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1980 Wong, George (Roberts, Ralph) U.S. Geological Survey
Updater 01-MAY-1982 La Pointe, D.D. (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.

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.