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South Comstock Mine Comstock Proj

Plant in Storey county in Nevada, United States with commodities Gold, Silver
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10174643
MAS/MILS ID 0320290089
Record type Site
Current site name South Comstock Mine Comstock Proj
Alternate or previous names South Comstock Mine, Comstock Project

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -119.6441, 39.268 (WGS84)
Elevation 1597
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Storey(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Virginia City(quadrangle 1:24,000 scale)

Carson City(quadrangle 1:100,000 scale)

Reno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Carson(hydrologic unit)

Carson(hydrologic accounting unit)

Central Lahontan(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Storey

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 016 N 021 E 08 NESENE Nevada

Commodities

Commodity Importance
Gold Primary
Silver Primary

Nearby scientific data

Main Entrance (1) -119.6441, 39.268
ListMap

Economic information

Ore body information

  • Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 UNKNOWN
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Date of Last Modification 960821

Comments on the geologic information

  • THE UNSPECIFIED INTRUSIVES ARE QUARTZ & CALCITE VEINS WHICH ARE THE ORE.

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1850
Mining method Open Pit
Year of first production 1859
Plant type Leach
Plant subcategory Hydromet
Milling method Heap Leach-Merrill-Crowe

Mining district

District name Comstock Lode

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner-Operator
    Owner Bmr Gold Corp.
    Interest 100
    Home office Canada
    Year 1997
    First year 1996
  • Type Owner
    Owner Bmr Gold Corp.
    Interest 50
    Home office Canada
    Year 1996
    First year 1995
    Last year 1996
  • Type Owner-Operator
    Owner Rea Gold Corp.
    Interest 50
    Home office Canada
    Year 1996
    First year 1995
    Last year 1996
  • Type Operator
    Owner South Comstock Joint Venture
    Home office Nevada
    Year 1995
    Last year 1995
  • Type Owner
    Owner Mastermines Corp.
    Home office Nevada
    Year 1981

Production statistics

  • Year 1993
    Description Phase I Hl Pad 300000 St Ore
  • Year 1994
    Description Gold Production 4860 T Oz Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 151162.91g
  • Year 1994
    Description Silver Production 54400 T Oz Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 1692029.36g
  • Year 1996
    Description Phase 2 Hl Pad And Mc (Est) 3000000 St Ore

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Measured 2700000mt ore
    Demonstrated 2700000mt ore
    Total resources 2700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.7 g/mt Gold Major 1993
  • Type In-situ
    Estimate year 1995
    Measured 2721554mt ore
    Demonstrated 2721554mt ore
    Total resources 2721554mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.7143 g/mt Gold Major 1995
    Silver Ag 17.143 g/mt Silver Major 1995
  • Type In-situ
    Estimate year 1996
    Measured 1632025mt ore
    Demonstrated 1632025mt ore
    Total resources 1632025mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.577 g/mt Gold Major 1996
    Silver Ag 17.143 g/mt Silver Major 1996
  • Type In-situ
    Estimate year 1996
    Demonstrated 3628739mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.7143 g/mt Gold Major 1996
    Silver Ag 17.143 g/mt Silver Major 1996
  • Type In-situ
    Estimate year 1997
    Demonstrated 1814369mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.71 g/mt Gold Major 1997

Reference information

Bibliographic references

  • Reserve-Resource

    MINING JOURNAL, LONDON, V320, #8223, 02/26/93, P145.

  • Reserve-Resource

    RANDOL MINES DIRECTORY, 1994/95, U.S. MINES AND MINING

  • Reserve-Resource

    COMPANIES, P352.

  • Reserve-Resource

    AMERICAN MINES HANDBOOK, 1996, P201.

  • Reserve-Resource

    RANDOL MINES DIRECTORY, 1996/97, U.S. MINES AND MINING

  • Reserve-Resource

    AMERICAN MINES HANDBOOK, 1996, P47.

  • Reserve-Resource

    AMERICAN MINES HANDBOOK, 1997, P55.

  • Reserve-Resource

    AMERICAN MINES HANDBOOK, 1997, PP. 232, 233.

  • Deposit

    MAP LOCATION, VIRGINIA CITY 7.5-MIN, TOPO MAP.

  • Deposit

    NEVADA DIVISION OF MINE INSPECTION, 1982 DIRECTORY OF NEVADA

  • Deposit

    MINE OPERATIONS ACTIVE DURING CALENDER YEAR 1981, P47.

  • Deposit

    MINING JOURNAL, LONDON, V320, #8223, 05/07/93, P330.

  • Deposit

    MINING MAGAZINE, JUNE, 1993, P359.

  • Deposit

    MINING JOURNAL, LONDON, V320, #8227, 06/04/93, P404.

  • Deposit

    MINING MAGAZINE, V169, #1, JULY, 1993, P50.

  • Deposit

    MINING JOURNAL, LONDON, V321, #8234, 07/23/93, P53.

  • Deposit

    THE NORTHERN MINER, SEPT., 20, 1993, P3.

  • Deposit

    ROCKY MOUNTAIN PAY DIRT, JAN., 1994, P11A.

  • Deposit

    THE MINING RECORD, V106, #1, JAN., 4, 1995, P4.

  • Deposit

    MAJOR MINES OF NEVADA 1995, MINERAL INDUSTRIES IN NEVADA'S

  • Deposit

    ECONOMY, THE NEVADA DIVISION OF MINERALS, 1996, NEVADA

  • Deposit

    BUREAU OF MINES AND GEOLOGY, SPE PUB P-7, P4.

  • Deposit

    1995/96 NEVADA MINES DIRECTORY, PP. 17, 28.

  • Deposit

    AMERICAN MINES HANDBOOK, 1996, PP. 47, 201.

  • Deposit

    RANDOL MINING DIRECTORY, 1996/97, U.S. MINES AND MINING

  • Deposit

    COMPANIES, P273.

  • Deposit

    AMERICAN MINES HANDBOOK, 1997, PP. 55, 232.

General comments

Subject category Comment text
Deposit PROPERTY IS LOCATED 3 KM SOUTH OF VIRGINIA CITY, NEVADA. JUST NORTH OF THE STOREY/LYON COUNTY BOUNDRY LINE. RE-DEVELOPMENT OF A MINE TO BEGAN IN AUG., 93; PHASE I AT 2041 MT/D OP MINE, @ 40,000 OZ AU/YR HEAP LEACH. HEAD GRADES OF 2.4G/T AU; 24G/T AG: COST US$2.5M, (REA GOLD CORP.) PHASE 2: NEW 81,647 MT PROCESSING FACILITY TO HANDLE 3.6MT/Y AT 1.7G/T. ALL ORE FROM THE LUCERNE PIT OF PHASE I. CONTINUE DRILLING DOWN DIP OF LECERNE PIT. THIS DRILLING CONFIRMED HIGHER GRADES IN THE SOUTH STARTER ZONE OPEN PIT. AN EASTWARD EXTENSION OF THE LUCERNE ORE BODY. PHASE 2: THE DEVELOPMENT OF THE BILLY THE KID PROCESSING PLANT BEGINING IN 1995, CAP OF 1.2M ST/Y, IT WILL PROCESS ORE FROM THE LUCERNE AND BTK PITS. THE RE-ACTIVATED OLIVER HILLS HL FACILITY (NEAR MOUNDHOUSE) & MC PLANT WILL PROCESS 300,000 ST ORE IN THE FIRST YEAR (1993)

Reporter information

Type Date Name Affiliation Comment
Reporter 10-OCT-97 Buckingham, David A. U.S. Bureau of Mines

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.