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Picacho Mine

Plant in Imperial county in California, United States with commodity Gold
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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. Economic information about the deposit and operations
  9. Mining district
  10. Mineral rights holdings
  11. Land status
  12. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10139342
MRDS ID W023692
MAS/MILS ID 0060250262
Record type Site
Current site name Picacho Mine
Alternate or previous names Picacho Gold Mine, Picacho Basin, Apache, Dulciana, Eastern California, Golden Casket, Golden Rule, Goshen, Helen May, Mars, Mars Extension, Mina Rica, St. George, Tierra Rica, Venus, Picach0, Jayne, California Gold King
Related records 10110679

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -114.64439, 32.96227 (WGS84)
Elevation 213
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Imperial(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Picacho Peak(quadrangle 1:24,000 scale)

Yuma(quadrangle 1:100,000 scale)

El Centro(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Imperial Reservoir(hydrologic unit)

Lower Colorado(hydrologic accounting unit)

Lower Colorado(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States California Imperial

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 014 S 022 E 10 NW California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

Main Entrance (1) -114.64439, 32.96227
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Mining method Open Pit
Year of first production 1980
Plant type Leach
Milling method Heap Leach-Agglomerate-Carbon Column-Electrowin

Mining district

District name Picacho

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Patented

Land status

Ownership category Unknown

Ownership information

  • Type Owner
    Owner Glamis Gold Inc.
    Interest 100
    Home office Nevada
    Year 1996
  • Type Operator
    Owner Chemgold, Inc.
    Home office Arizona
    Year 1996

Production statistics

  • Year 1991
    Description Gold Production (Fy91) (07/1990-06/1991) 17362 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 540018.63g
  • Year 1992
    Description Gold Production (Fy92) (07/1991-06/1992) 29429 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 915344.34g
  • Year 1993
    Description Gold Production (Fy93) (07/1992-06/1993) 27578 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 857771.79g
  • Year 1994
    Description Gold Production (Fy94) (07/1993-06/1994) 23333 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 725737.52g
  • Year 1995
    Description Gold Production (07/95-12/95) 14434 T Oz/Yr Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 448947.64g
  • Year 1995
    Description Gold Production (Fy95) (07/1994-06/1995) 25270 T Oz/Yr Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 785984.96g
  • Year 1996
    Description Gold Production 34621 Tr Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 1076833.61g
  • Year 1996
    Description Ore Mined @ 0.036 Opt 1631600 St Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 179853.06mt

Comments on the production information

  • GOLD PRODUCTION STARTED 5/1/80.

Reserves and resources

  • Type In-situ
    Estimate year 1985
    Measured 1316400mt ore
    Indicated 7503300mt ore
    Demonstrated 8819700mt ore
    Total resources 8819700mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.441 g/mt Gold Major 1985
    Gold Au 1.5439 g/mt Gold Major 1985
  • Type In-situ
    Estimate year 1993
    Demonstrated 5559000mt ore
    Total resources 5559000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.17 g/mt Gold Major 1993
  • Type In-situ
    Estimate year 1996
    Measured 2532000mt ore
    Indicated 158000mt ore
    Demonstrated 2690000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.34 g/mt Gold Major 1996
  • Type In-situ
    Estimate year 1997
    Measured 966605mt ore
    Indicated 55066mt ore
    Demonstrated 1021671mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.2 g/mt Gold Major 1997

Comments on the reserve resource information

  • PROVEN + PROBABLE ORE RESERVES, 12/31/96; SR OF 0.20 TO 1.0
  • IN 1992, DEMONSTRATED RESERVES WERE 7529594 MT ORE @ 1.3 G/MT. MEASURED ORE RESERVES, 6713132 MT @ 1.17 G-AU/MT.

Workings at the site

  • Type of workings Surface
    Area 259HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN PIT
    Percent Waste Rock 41.6

Comments on the workings information

  • TESTING OF EACH ROCK TYPE ON PROPERTY INDICATES NON ACID FORMING. SIMPLE NEUTRALIZATION IS USED. PROCESS WATER CIRCUIT IS CLOSED; ACTUAL CONSUMPTION IS 100,000 GPD.

Comments on other economic factors

  • PUBLISHED HEAP LEACH COSTS $125/TR.OZ. IN 1985 (1986)

Reference information

Bibliographic references

  • Production

    GLAMIS GOLD LTD., 1996 FORM 10-K, PP. 11, 27.

  • Production

    GLAMIS GOLD LTD., 1996 ANNUAL REPORT, PP. 1, 12.

  • Production

    RANDOL MINING DIRECTORY 1996-97, P.164.

  • Reserve-Resource

    GLAMIS GOLD LTD. ANNUAL REPORT, 1985.

  • Reserve-Resource

    1993 ANNUAL REPORT

  • Reserve-Resource

    GLAMIS GOLD LTD., 07/95 - 12/95 FORM 10-K, PP. 12, 25.

  • Reserve-Resource

    GLAMIS GOLD LTD., 1996 FORM 10-K PP. 13, 26.

  • Reserve-Resource

    GLAMIS GOLD LTD., 1996 ANNUAL REPORT INSERT.

  • Deposit

    CALIF. STATE MINING BUR. REPORT, V. 22, 1926, P. 260-261.

  • Deposit

    CALIF. JOUR. MINES AND GEOL., V. 38, 1942, P. 124.

  • Deposit

    CALIF. DIV. MINES AND GEOL. COUNTY REPORT 7, 1977, P. 57-58.

  • Deposit

    GLAMIS GOLD LTD. ANNUAL REPORT, 1984.

  • Deposit

    MINING JOURNAL, P. 487, DTD 12/27/85.

  • Deposit

    GLOBAL MARKETS, VOL. 2, NO. 8, 12/06/85.

  • Deposit

    LONDON MINING JOURNAL, VOL. 306, P. 387, 05/30/86.

  • Deposit

    GEORGE CROSS NEWSLETTER, NO. 55, DTD 03/19/86.

  • Deposit

    CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 103, 1990,

  • Deposit

    P.

  • Deposit

    ABOUT 20 MI NORTH OF YUMA CALIF.

  • Deposit

    RANDOL MINING DIRECTORY, 1990,1991, 1993.

  • Deposit

    GLAMIS GOLD INC. ANNUAL REPORT, 1991.

  • Deposit

    U.S.BLM ENVIRONMENTAL IMPACT REPORT FOR THE PROPOSED

  • Deposit

    CHEMGOLD INC PICACHO MINE, DULCINA PIT PHASE 2, IMPERIAL

  • Deposit

    CO. CALIF. JUNE 1991.

  • Deposit

    THE MINING RECORD, V107 N34, 8-21-96, P.7.

General comments

Subject category Comment text
Deposit PROPERTY MAY INCLUDE THE OLD CHRISTIE GOLD MINE (PICACHO PEAK GOLD PROJECT), MAS SEQ# 0060250463. PROPERTY CONSISTS OF 52 LODE MINING CLAIMS, OVER 640 ACRES

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.

External references

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.