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Rock Hill Tungsten Mine and Mill

Producer in Esmeralda county in Nevada, United States with commodities Tungsten, Gold, Silver, Molybdenum
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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. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10046629
MRDS ID M241819
Record type Site
Current site name Rock Hill Tungsten Mine and Mill
Alternate or previous names Broken Toe Mine, Dhw Claims, Easter Claims, NBMG Sample Sites 1083, 1084, and 1085.

Geographic coordinates

Geographic coordinates: -117.95316, 38.15632 (WGS84)
Elevation 1423
Relative position JUST 0.2 MILE WEST OF U.S. HIGHWAY 95.

Site location context

Political divisions (FIPS codes)

Esmeralda(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rock Hill(quadrangle 1:24,000 scale)

Tonopah(quadrangle 1:100,000 scale)

Tonopah(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fish Lake-Soda Spring 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 Esmeralda

Public Land Survey System information

Meridian Township Range Section Fraction State
004N 036E 34 SE Nevada

Comments on the location information

  • 9 MILES NNW OF COALDALE AND IMMEDIATELY WEST OF HIGHWAY 95; NORTH OF COLUMBUS SALT MARSH. . UTM IS TO ONE OF MANY WORKINGS ; INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Tungsten Critical Primary
Gold Secondary
Silver Secondary
Molybdenum Secondary

Materials information

Materials Type of material
Scheelite Ore
Calcite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Ordovician
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Rock unit name Palmetto
    Rock description Palmetto
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -117.95316, 38.15632
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Normal Faults, Most Beds Are Highly Contorted And Faulted Into Wide Range Of Attitudes

Controls for ore emplacement

  • Fractures And Faults Ne Trending.

Comments on the geologic information

  • THE BEDS ARE CUT BY HIGHLY FRACTURED, SULFIDE BEARING, VERTICAL CALCITE AND QUARTZ VEINS WITH SECONDARY MALACMITE COATINGS ON FRACTURE SURFACES.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Rock Hill District (Redlick(?) District)

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Lessee/Operator
    Owner Central Valley Mining Co. Halt. Hall, General Manager; Sid Mcbroome, Superintendent
    Home office Fresno
    First year 1972
  • Type Owner
    Owner Tungsic. Inc.
    Home office 505 N. Division St., Carson City, Nv, 8970.

Comments on the production information

  • CENTRAL VALLEY MINING CO. WAS PROCESSING 400-500 TONS PER DAY OF ORE IN 1972 IN A SINGLE SHIFT PER DAY

Comments on the reserve resource information

  • REESE RIVER REVEILLE, 1972.

Comments on the workings information

  • SHAFT SHOWN ON TOPO; ALSO MANY PITS, ADIT

Comments on development

  • 400-500 TPD TUNGSTEN-PROCESSING PLANT WAS IN OPERATION IN 1972 MOST OF THE OLD WORKINGS HAVE BEEN DISTOYED IN THE PAST 5 YEARS, DUE TO EXPLORATION (1982).

Reference information

Bibliographic references

  • Deposit

    REESE RIVER REVEILLE, 8 MARCH 1972, "TUNGSTEN PLANT PROCESSES ORE"

  • Deposit

    ALBERS, J.P., AND STEWART, J.H., 1972, NBMG BULL. 72, P.59

  • Deposit

    USBM, 1978, MILS DATA

  • Deposit

    SCHILLING, J., 1964, IN NBMG BULL 65, P.161

  • Deposit

    SMITH, 1982, FIELD EXAMINATION (AUG 30, 1982)

  • Production

    REESE RIVER REVEILLE, 1972.

General comments

Subject category Comment text
Deposit THE INTROSIVE HAS BEEN EXTENSIVELY BRECCIATED WITH STOCKWORK VEINING, COSSAU AND BOXWORK; AND ABUNDANT PSICOMELINE COATING THE SURFACES. THERE IS EVIDENCE OF AT LEAST 3 STAGES OF BRECCIATION AND SURSEQUENT VEINING. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-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.