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Mccoy Iron Mine

Past Producer in Lander county in Nevada, United States with commodity Iron
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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. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10044853
MRDS ID M232469
Record type Site
Current site name Mccoy Iron Mine
Alternate or previous names Uhalde, New World, Childress, Nevada Iron

Geographic coordinates

Geographic coordinates: -117.22372, 40.31018 (WGS84)

Site location context

Political divisions (FIPS codes)

Lander(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

McCoy(quadrangle 1:24,000 scale)

Fish Creek Mountains(quadrangle 1:100,000 scale)

Winnemucca(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Reese(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(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 Lander

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 028N 042E 11 Nevada

Comments on the location information

  • UTM IS FROM NBMG SAMPLE SITE 670

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Magnetite Ore

Alteration

  • (Local) Bleaching, Oxidation, Kaolinization

Analytical data

Result SEE KRAL (1947 P.4) FOR DRILL HOLE DATA & SURFACE SAMPLES

Mineral occurrence model information

Model code 62
USGS model code 18d
Deposit model name Skarn Fe

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Cane Springs (Quartzite, Shales)
    Rock description Cane Springs (Quartzite, Shales)
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Osobb Formation(Dolomite)
    Rock description Osobb Formation(Dolomite)

Nearby scientific data

(1) -117.22372, 40.31018
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description The Deposit Is At The Base Of The Osobb Near The Contact With The Underlying Cane Spring Limestone. A Diorite Stock Intrudes And Has Locally Pyrometasomatized The Can Spring About 1 Mile To The North

Ore body information

  • General form TABULAR TO IRREGULAR
    Length 1524M

Controls for ore emplacement

  • Favorable Bed Capped By Impermeable Layer And Near Intrusive Body.

Comments on the geologic information

  • THE IRON ORE OCCURS AS IRREGULAR MASSES AND BANDS REPLACING DOLOMITE BEDS IN THE OSOBB FORMATION. THE OREBODIES APPEAR TO BE LOCALIZED ALONG MINERALIZED FAULTS AND SHEAR ZONES THAT INTERSECT NEARBY INTRUSIVE BODIES OF DIORITE. MAGNETITE OUTCROPS CAN BE TRACED FOR 5,000, HOWEVER TRENCHING PROVED THE ORE BODIES TO BE DISCONTINOUS. THE DRILLING OUTLINED A SMALL TABULAR OREBODY WHICH FEATHERS OUT IN BOTH GRADE AND THICKNESS AT THE EDGES (KRAL, 1947).

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1944

Mining district

District name Mccoy

Comments on the workings information

  • OPEN PIT, EXTENSIVE TRENCHING, DREDGING, AND OPEN PITS

Comments on development

  • OPEN PIT MINE. USBM DID DRILLING AND TRENCHING PROGRAM IN 1944. SITE BEING STAKED FOR GOLFIELDS IN 1981, WITH BLASTING TO SOUTH.

Reference information

Bibliographic references

  • Deposit

    STAGER, H.K. (1977) GEOLOGY & MINERAL RESOURCES OF LANDER CO., N.B.M. BULL 88

  • Deposit

    USBM (WINNEMUCCA) MILS NO. 69, REFERENCE NO. 3201500201

  • Deposit

    MCKEE E.H. & STEWART J. (1968) GEOLOGIC MAP OF THE MCCOY QUADRANGLE, USGS OPEN-FILE MAP

  • Deposit

    KRAL, V.E. (1947) MCCOY IRON DEPOSIT, LANDER CO., NEV., USBM REPT OF INV. 3990

  • Deposit

    MCCOY FE MINE, SITE VISIT RECORD, MCCOY DISTRICT, LANDER CO., NBMG UNPUBL. MINING DISTRICT FILES(TINGLEY).

  • Production

    STAGER, H.K., 1977

General comments

Subject category Comment text
Deposit ORE OCCURS AS IRREGULAR MASSES AND BANDS REPLACING DOLOMITE BEDS. OREBODIES LOCALIZED ALONG MINERALIZED FAULTS AND SHEAR ZONES
Deposit A TOTAL OF ABOUT 40,000 LONGS TONS OF ORE AVERAGING 60% FE HAS BEEN OPEN PIT MINED FROM THREE OREBODIES WHICH STRIKE E-W AND DIP. 10-20 SOUTH. FOLLOWING A MAGNETOMETER SURVEY ON THE MCCOY DEPOSIT THE USBM CARRIED OUT A TRENCHING AND DRILLING PROGRAM IN 1944. THEY DRILLED TWO HOLES TO A TOTAL DEPTH OF 92 FEET. NBMG VISITED THE SITE IN 1981, TOOK SAMPLE #670, RESULTS UNKNOWN. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1980 Kirkham, Richard A. Nevada Bureau of Mines and Geology
Updater 01-MAR-1990 Marcus, Susan 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.