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North Fork Mine

Past Producer in Pershing county in Nevada, United States with commodity Mercury
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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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10042641
MRDS ID M060502
Record type Site
Current site name North Fork Mine
Alternate or previous names Mercury King
Related records 10295047

Geographic coordinates

Geographic coordinates: -118.34126, 40.83406 (WGS84)
Elevation 1829
Relative position 2 MI. NW OF MOUNT TOBIN MINE

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Alpha Mountain(quadrangle 1:24,000 scale)

Eugene Mountains(quadrangle 1:100,000 scale)

Lovelock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Quinn(hydrologic unit)

Black Rock Desert(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Pershing

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 029N 039E 35 Nevada

Comments on the location information

  • ON ALPHA MOUNTAIN

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Stratigraphic age (youngest) Holocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate

Nearby scientific data

(1) -118.34126, 40.83406
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ne-Trending Fault

Ore body information

  • General form TABULAR
    Strike N77E
    Dip 47N

Controls for ore emplacement

  • Shear Zone

Comments on the geologic information

  • VEINLETS AND CRUSTS OF CINNABAR LINE FRACTURES IN A SHEAR ZONE CROSSING SANDSTONE & CONGLOMERATE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1941
Year of first production 1942

Mining district

District name Mount Tobin District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Southern Pacific Railroad
    First year 1936

Comments on the production information

  • PROSPECTING BEGAN IN 1936, NO ORE HAD BEEN SHIPPED YET AT TIME OF REPORT. AVERAGE VEIN MATERIAL VALUE IS $25/TON. ARSENOPYRITE VEINS CARRY AU VALUES UP TO $70/TON.

Workings at the site

  • Type of workings Surface
    Length 91.44M
    Overall depth 3.96M

Comments on the workings information

  • ADITS, DRIFTS, OPENCUTS

Reference information

Bibliographic references

  • Deposit

    BAILEY AND PHOENIX, 1944, QUICK SILVER DEPOSITS OF NEVADA; NBMG BULL. 41

  • Deposit

    HOLMES, 1965, MERCURY IN NEVADA; USBM 1C 6902

  • Deposit

    JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA; NBMG BULL. 89

  • Production

    JOHNSON, M.G., 1977

General comments

Subject category Comment text
Deposit LOCATED IN 1941 WITH SMALL PRODUCTION IN 1942-43. DEVELOPMENT CONSISTS OF SEVERAL HUNDRED FEET OF ADITS AND DRIFTS CONNECTED TO A 13-FOOT SHAFT, AND NUMEROUS OPEN CUTS. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Harner, Joy L. (Roberts, Ralph J.) Nevada Bureau of Mines and Geology
Updater 01-FEB-1981 Royse, Sue E. U.S. Geological Survey

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.