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Maggie Creek Open Pit Gold Mine

Producer in Eureka county in Nevada, United States with commodities Gold, Silver, Barium-Barite, Arsenic, 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. 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. Land status
  18. Ownership information
  19. Production statistics
  20. Reserves and resources
  21. Workings at the site
  22. Links to other databases
  23. Bibliographic references
  24. General comments
  25. Reporter information

Geologic information

Identification information

Deposit ID 10047013
MRDS ID M242253
Record type Site
Current site name Maggie Creek Open Pit Gold Mine
Alternate or previous names NBMG Sample Sites 562, 133, Mc Leach Deposit, Deep West Orebody

Geographic coordinates

Geographic coordinates: -116.22203, 40.78491 (WGS84)
Elevation 1737
Relative position NINE MILES NORTH OF CARLIN, NEVADA

Site location context

Political divisions (FIPS codes)

Eureka(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Schroeder Mountain(quadrangle 1:24,000 scale)

Battle Mountain(quadrangle 1:100,000 scale)

Winnemucca(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Humboldt(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Eureka

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 033N;034N 051E 03;34 SE (34) Nevada

Comments on the location information

  • LOCATED ON THE SE FLANK OF THE CARLIN WINDOW. OPEN PIT OVERLAPS GOLD QUARRY DEPOSIT. DO NOT CONFUSE THIS MINE WITH MAGGIE CREEK BARITE MINE (UTM 4517777N, 565410E, RECORD #M232283). . INFO FROM LAND.ST :1972

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Barium-Barite Critical Tertiary
Arsenic Critical Tertiary
Zinc Critical Tertiary

Comments on the commodity information

  • THERE IS AN ASSOCIATION OF GOLD AND PYRITE IN THE UNOXIDIZED ORE. AU:AG RATIO 19:1.

Materials information

Materials Type of material
Alunite Ore
Barite Ore
Calcite Ore
Illite Ore
Kaolinite Ore
Montmorillonite Ore
Quartz Ore

Alteration

  • (Local) Oxidation, Silicification

Analytical data

Result SAMPLE 1562 OF VUGGY SILICIFIED SILTSTONE BRECCIA CONTAINS 2% FE, 0.3% MG, 1% CA, 0.1% TI, 500 PPM MN, 7 PPM AG, 1500 PPM AS, 10 PPM AU, 100 PPM B, 100 PPM BA, 5 PPM BE, 15 PPM BI, 300 PPM CD, 100 PPM CO, 50 PPM CR, 100 PPM CU, 20 PPM LA, 500 PPM NI, 100 PPM PB, 1500 PPM SB, 5 PPM SC, 300 PPM V, 150 PPM W, 20 PPM Y, 3000 PPM ZN, 30 PPM ZR. SAMPLE 133 OF ALTERED, OXIDIZED, VEINED SILTSTONE FROM OPEN PIT CONTAINS 3% FE, 0.2% MG, 1.5% CA, 0.15% TI, 500 PPM MN, 1 PPM AG, 1000 PPM AS, 200 PPM B, 5000 PPM BA, 15 PPM BI, 10 PPM CO, 50 PPM CR, 150 PPM CU, 20 PPM LA, 15 PPM MO, 100 PPM NI, 70 PPM PB, 200 PPM SB, 7 PPM SC, 200 PPM SR, 500 PPM B, 30 PPM Y, 700 PPM ZN, 50 PPM ZR.

Mineral occurrence model information

Model code 172
USGS model code 26a
Deposit model name Carbonate-hosted Au-Ag
Mark3 model number 15

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Rock unit name Transitional Assemblage;Roberts Mountains Formation
    Rock description Transitional Assemblage;Roberts Mountains Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Vinini;Vinini;Vinini;Vinini
    Rock description Vinini;Vinini;Vinini;Vinini

Economic information

Geologic structures

Type of structure Regional
Structure description Located At Se Corner Of Carlin Window In Roberts Mountains Thrust
Type of structure Local
Structure description Fissures, Fractures Zones, Faulting Folding. The Less Fault, A High-Angle Ne-Striking Structure.

Ore body information

  • Strike NE
    Dip HIGH ANGLE
    Length 731.52M
    Width 182.88M

Controls for ore emplacement

  • The Less Fault

Comments on the geologic information

  • HOST ROCKS ARE PART OF THE UPPER PLATE TRANSITIONAL SERIES.

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Deposit size Medium
Significant No
Discovery year 1977
Discoverer Carlin Gold Mining Co. (Predecessor To Newmont Gold Co.)
Year of first production 1980
Year of last production 1986
Production years 1980-1986

Mining district

District name Maggie Creek Subdistrict; Carlin Trend

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Newmont Gold Co. (Newmont Mining Corp.)
    Home office P.O. Box 979, Carlin, Nv 89822

Production statistics

  • Year 1984
    Material ORE AU
    Accuracy Estimate
    Description Ap_Grade: ^0.079 Oz/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 2g/mt

Comments on the production information

  • MINED AT RATE OF 16000 TPD IN 1979. INTERMITTENT PRODUCTION, 1984-1988.

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Total resources 1632000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.23 g/mt Gold Major 1984
  • Type In-situ
    Estimate year 1986
    Total resources 3038000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.27 g/mt Gold Major 1986
  • Type In-situ
    Estimate year 1987
    Total resources 3038000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.27 g/mt Gold Major 1987
  • Type In-situ
    Estimate year 1977
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.541 g/mt Gold Major 1977
  • Type In-situ
    Estimate year 1982
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.23 g/mt Gold Major 1982

Comments on the reserve resource information

  • MINE TOUR BY NBMG GEOLOGISTS, 5/82.

Workings at the site

  • Type of workings Surface
    Overall depth 100.58M
    Overall length 749.81M
    Overall width 451.1M

Comments on the workings information

  • MAGGIE CREEK IS DIVIDED INTO THE MAIN PIT AND THE WEST PIT. MINING RATE IN 1980 WAS 16,000 TPD ORE AND WASTE. FIGURES REPRESENT MAIN PIT DIMENSIONS IN 1986 WHEN OPERATIONS WERE TRANSFERRED TO THE GOLD QUARRY MINE. THE MAGGIE CREEK MINE CURRENTLY FORMS THE WEST AND SOUTHWEST PORTIONS OF THE GOLD QUARRY PIT. ORE REMAINING AT THE IDLE MAGGIE CREEK DEPOSIT WILL BE MINED AS THE EXPANDING GOLD QUARRY PIT ENCOMPASSES IT.

Comments on development

  • THE FIRST CLAIMS IN THE VICINITY OF MAGGIE CREEK WERE STAKED IN 1925 BY A. BERNING, WHO LEASED THE PROPERTY TO CUBA CONSOLIDATED MINES COMPANY. IN 1936, CUBA CONSOLIDATED SHIPPED 60 TONS OF ORE AVERAGING 0.417 OPT AU, 0.882 OPT AG. NEWMONT CORP. ACQUIRED THE PROPERTY IN 1962 AND CONDUCTED A DRILLING PROGRAM IN 1963-64 IN THE VICINITY OF WHAT IS NOW THE NORTHERN LIMIT OF GOLD QUARRY. DRILLING WAS CENTERED SW OF THE JASPEROID OUTCROP FROM WHICH THE 60 TONS OF ORE WERE MINED. THE MAGGIE CREEK CLAIMS WERE REACQUIRED IN 1977 AND A DRILLING PROGRAM WAS INITIATED. DEVELOPMENT DRILLING BEGAN IN THE SPRING OF 1978 AND CONTINUED UNTIL THE FALL OF 1979. MINING BEGAN JULY 1980 AND CEASED IN 1986 WHEN OPERATIONS TRANSFERRED TO THE ADJACENT GOLD QUARRY MINE. PERCUSSION DRILLING IN 1987 REVEALED THAT THE MAGGIE CREEK SOUTH ORE ZONE IS CONTINUOUS AT DEPTH TO THE EAST, BLOSSOMING INTO THE UPPER PORTIONS OF THE DEEP WEST OREBODY. A SMALL DEPOSIT KNOWN AS MC LEACH OCCURS SW OF MAGGIE CREEK ALONG
  • EXTENSIONS OF THE GOLD QUARRY/LES FAULT SYSTEM.

Reference information

Bibliographic references

  • Deposit

    BENTZ, J.L., BROOKS, S., AND MACFARLANE, 1982, FIELD EXAMINATION AND MINE TOUR, REPORT, MAY 27, 1982.

  • Deposit

    BENTZ, J.L., ET AL, 1983, A MINERAL INVENTORY OF THE ELKO RESOURCE AREA, ELKO DISTRICT, NEVADA, NBMG OFR 83-9, P. 136-138.

  • Deposit

    BONHAM, H.F., JR., 1982, NBMG OFR 82-9.

  • Deposit

    "THE HUGE FIND IN ROY ASH'S BACKYARD, 1982, FORTUNE MAGAZINE, DECEMBER 27, 1982.

  • Deposit

    VARIOUS PRESS CLIPPINGS, 1980-1984, NBMG FILE 116.

  • Deposit

    BONHAM, H.F., 1986, NBMG MAP 91.

  • Deposit

    NBMG, 1988, THE NEVADA MINERAL INDUSTRY - 1987, NBMG SPECIAL PUBLICATION MI-1987.

  • Deposit

    EKBURG, C., ROTA, J., AND ARKELL, B., 1991, GEOLOGY AND MINERAL DEPOSITS OF THE MAGGIE CREEK SUBDISTRICT, CARLIN TREND, EUREKA COUNTY, NEVADA, IN RAINES, G.L., ET AL, EDS., GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 625-633.

  • Deposit

    EKBURG, C., 1986, GENERAL GEOLOGY OF THE MAGGIE CREEK GOLD DEPOSIT, EUREKA COUNTY, NEVADA: IN TINGLEY, J., AND BONHAM, H., EDS., SEDIMENT-HOSTED PRECIOUS METAL DEPOSITS OF NORTHERN NEVADA: NBMG REP. 40, P. 65-68.

  • Deposit

    HAUSEN, D., EKBURG, C., AND KULA, F., 1983, GEOCHEMICAL AND XRD-COMPUTER LOGGING FOR LITHOLOGIC ORE TYPE CLASSIFICATION OF CARLIN-TYPE GOLD ORES: IN PROCESS MINERALOGY II, APPLICATIONS IN METALLURGY, CERAMICS, AND GEOLOGY: METALLURGICAL SOCIETY OF AIME, WARRENDALE, PA, P. 421-450.

  • Deposit

    MINING MAGAZINE, OCTOBER, 1989, V. 161, NO. 4, P. 256-261.

  • Deposit

    NBMG, 1985, THE NEVADA MINERAL INDUSTRY - 1984, NBMG SPECIAL PUBLICATION MI-1984.

  • Deposit

    NBMG, 1987, THE NEVADA MINERAL INDUSTRY -1986, NBMG SPECIAL PUBLICATION MI-1986.

  • Deposit

    NBMG, 1994, MI-1993

  • Production

    PRESS CLIPPINGS, 1980-1984, NBMG DISTRICT FILE 116. EKBURG, C., ROTA, J., AND ARKELL, B., 1991, GEOLOGY AND MINERAL DEPOSITS OF THE MAGGIE CREEK SUBDISTRICT, CARLIN TREND, EUREKA COUNTY, NEVADA, IN RAINES, G.L., ET AL, EDS., GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 625-633. NBMG MI-1993

  • Reserve-Resource

    NBMG, 1988, THE NEVADA MINERAL INDUSTRY - 1987, NBMG SPECIAL PUBLICATION MI-1987. NBMG MI-1993

General comments

Subject category Comment text
Deposit FIGURES ARE FOR THE MAIN PIT ORE ZONES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1984 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-SEP-1988 La Pointe, D.D. Nevada Bureau of Mines and Geology
Updater 01-FEB-1992 Phinisey, J. D. (Marcus, S.) U.S. Geological Survey
Updater 01-SEP-1994 Li, Zhiping (Moyer, Lorre A.) 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.