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Mineral Ridge Mine

Plant in Esmeralda county in Nevada, United States with commodities Antimony, Copper, Gold, Lead, 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. Reporter information

Geologic information

Identification information

Deposit ID 10295754
MRDS ID WOO29O1
MAS/MILS ID 0320090371
Record type Site
Current site name Mineral Ridge Mine
Alternate or previous names Gordon Brodie, Blue Lite, Silver Peak Property, Mary-Drinkwater, Gold Wedge, Solberry, Mary 0320090163, Drinkwater Mine 0320090131, Silver Peak 0320090735

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -117.69452, 37.79354 (WGS84)
Elevation 2700
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Esmeralda(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Silver Peak(quadrangle 1:24,000 scale)

Goldfield(quadrangle 1:100,000 scale)

Goldfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Ralston-Stone Cabin Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Esmeralda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002 S 039 E 06 Nevada

Commodities

Commodity Importance
Antimony Critical Tertiary
Copper Tertiary
Gold Primary
Lead Tertiary
Silver Secondary

Nearby scientific data

Main Entrance (1) -117.69452, 37.79354
ListMap

Economic information

Ore body information

  • Area 1087HA
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Shape of Orebody #3 OTHER
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control FAULTING
    Secondary Ore Control OTHER
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Total Surface Area (HA) 1087
    Date of Last Modification 960814

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1973
Mining method Open Pit
Plant type Leach
Milling method Heap Leach-Agglomerate-Merrill-Crowe

Mining district

District name Mineral Ridge District

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Patented
Type of mineral rights Other

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Cornucopia Resources Inc.
    Interest 100
    Home office Nevada
    Year 1996
    First year 1993
  • Type Operator
    Owner Mineral Ridge Resources Inc. (100% Sub Of Cornucopia)
    Home office Nevada
    Year 1996
    First year 1993
  • Type Operator
    Owner Touchstone Resources Co. (100% Sub Of Cornucopia)
    Home office Nevada
    Year 1995
    First year 1993
    Last year 1994
  • Type Owner
    Owner Mary Mining Co., Inc.
    Interest 100
    Home office Florida
    Year 1994
    Last year 1993
  • Type Owner
    Owner Homestead Minerals Inc.
    Interest 100
    Year 1991
  • Type Owner-Operator
    Owner Zephyr Resources, Inc. (Zephyr Mining Co., Inc.)
    Interest 100
    Home office Nevada
    Year 1991
    First year 1973
  • Type Unknown
    Owner Richfield Resources
    Year 1988

Production statistics

  • Year 1997
    Description Gold Production (Est) 50000 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 1555174.05g

Reserves and resources

  • Type In-situ
    Estimate year 1996
    Demonstrated 4696000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.33 g/mt Gold Major 1996
  • Type In-situ
    Estimate year 1997
    Total resources 4717000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.33 g/mt Gold Major 1997

Comments on the reserve resource information

  • PROVEN + PROBABLE ORE RESERVE; 12/31/95; COG OF 0.024 OPT (0.823 G/MT) W TO O SR 4.3 TO 1.0: PRODUCTION WIIL BE CLOSE TO 50,000 OZ AU/YR.

Comments on other economic factors

  • PROCESSING FACILITIES WILL HANDLE A MIN. OF 2700 TONS/DAY AT 350 DAYS/YR.

Reference information

Bibliographic references

  • Ownership

    RAW MATERIALS GROUP, WHO OWNS WHO IN MINING, 1992, PP. 238,

  • Ownership

    288.

  • Reserve-Resource

    CORNUCOPIA RESOURCES LTD, 1995 ANNUAL REPORT, PP. 2-5

  • Reserve-Resource

    CORNUCOPIA RESOURCES LTD, 1995 FORM 10-KSB, PP. 16-20.

  • Reserve-Resource

    THE MINING RECORD, V107, #34, 8/21/96, P5.

  • Reserve-Resource

    THE MINING RECORD, V107, #??, 8/31/96, P5.

  • Reserve-Resource

    THE NORTHERN MINER, 7-7-97, P1.

  • Deposit

    USGS BULL# 225, 1903, 04, PP.112, 113.

  • Deposit

    USGS PP# 55, 1906, PP. 24, 23, 36, 54, 55, PLATES 2, 7-12,

  • Deposit

    FIG 1.

  • Deposit

    USGS PP# 610, 1968, P 178.

  • Deposit

    NEVADA BOM & GEO, BULL# 78, 1972, PP. 46, 71, PLATE 2.

  • Deposit

    JUNE, 1981, MSHA REPORT.

  • Deposit

    USGS GRID# WOO29O1 (W002901).

  • Deposit

    NEVADA BOM & GEO, SP# 10, 1990, P21.

  • Deposit

    NEVADA DIVISION OF MINE INSPECTION, 1991, DIRECTORY OF

  • Deposit

    NEVADA MINE OPERATIONS ACTIVE DURING CALENDER YEAR

  • Deposit

    1990, P31.

  • Deposit

    AMERICAN MINES HANDBOOK, 1996, P79.

  • Deposit

    1995/96 NEAVAD MINES DIRECTORY, P8.

  • Deposit

    CORNUCOPIA RESOURCES, LTD 1995 ANNUAL & 10-KBS REPORTS.

  • Deposit

    THE MINING RECORD, VOL 107, #34, AUG. 21, 1996, P5.

  • Deposit

    THE MINING RECORD, VOL., 107, #??, AUG. 31, 1996, P5.

  • Deposit

    THE MINING RECORD, VOL 107, #??, SEPT., 4, 1996, P12.

  • Deposit

    THE MINING RECORD, VOL 107, #38, SEPT 18, 1996, P1.

  • Deposit

    THE MINING RECORD, VOL., 107, #49, DEC., 4, 1996, P5.

  • Deposit

    THE MINING RECORD, VOL., 108, #9, FEB. 26, 1997, P15.

  • Deposit

    THE NORTHERN MINER, JUNE 3, 1996, PP. B1-B16.

  • Deposit

    BUSINESS WIRE, NOV 6, 1996, P1.

Reporter information

Type Date Name Affiliation Comment
Reporter 14-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.