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American Girl Mine

Plant in Imperial county in California, United States with commodities Copper, 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. 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 10115118
MRDS ID W023685
MAS/MILS ID 0060250226
Record type Site
Current site name American Girl Mine
Alternate or previous names Cargo Mine 0060250242, Cargo Muchacho Mine
Related records 10076591

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -114.78749, 32.85567 (WGS84)
Elevation 244
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Imperial(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ogilby(quadrangle 1:24,000 scale)

Yuma(quadrangle 1:100,000 scale)

El Centro(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salton Sea(hydrologic accounting unit)

Southern Mojave-Salton Sea(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California Imperial

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 015 S 021 E 17 NWSW California

Commodities

Commodity Importance
Copper Tertiary
Gold Primary
Silver Tertiary

Nearby scientific data

Main Entrance (1) -114.78749, 32.85567
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Mining method Combined Methods
Year of first production 1987
Plant type Leach
Plant subcategory Hydromet
Milling method Heap Leach-Carbon Column-Merrill-Crowe

Mining district

District name Cargo Muchacho

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner American Girl Mining Joint Venture (Mk Gold Co./Hecla Mining Co.)
    Interest 100
    Home office California
    Year 1996
    First year 1990
  • Type Owner
    Owner Mk Gold Co. (Sub Morrison-Knudsen Corp.)
    Interest 53
    Home office Idaho
    Year 1996
    First year 1990
  • Type Owner
    Owner Hecla Mining Co.
    Interest 47
    Home office Idaho
    Year 1996
    First year 1994
  • Type Owner-Operator
    Owner Equinox Resources (Aquired By Hecla In
    Interest 50
    Home office Idaho
    Year 1994
    Last year 1994
  • Type Owner
    Owner Morrison-Knudsen Corp. (Mk Gold)
    Interest 50
    Home office Idaho
    Year 1990
  • Type Owner
    Owner Eastmaque Gold Mines Ltd.
    Interest 50
    Year 1990

Comments on the ownership information

  • IN 1989, EASTMAQUE TEAMED UP WITH MK GOLD. HECLA ACQUIRED EQUINOX IN 1994.

Production statistics

  • Year 1993
    Description Gold Production 71789 T Oz/Yr, Silver Production 36291 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver Silver 1028831g
    Gold Gold Gold 2035182g
  • Year 1994
    Description Gold Production 64980 T Oz/Yr, Silver Production 39002 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 1842150g
    Silver Silver Silver 1105687g
  • Year 1995
    Description Gold Production 45722 T Oz/Yr Gold, Silver Production 27772 T Oz/Yr Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver Silver 787322g
    Gold Gold Gold 1296195g

Comments on the production information

  • ON 11-4-96, OPERATIONS WILL BE SUSPENDED. HOWEVER, LIMITED GOLD PRODUCTION WILL CONTINUE INTO 1998 AS THE ORE HEAPS ARE LEACHED DURING THE RECLAMATION PERIOD. MK GOLD CO. SUSPENDED MINING OPERATIONS AT THE AMERICAN GIRL JOINT VENTURE GOLD MINE, IMPERIAL COUNTY, CALIF., ON NOV. 4 1995; RESULTING IN 115 LAYOFFS AND AN UNDISCLOSED SECOND- QUARTER CHARGE. THE OPERATION ALSO INCLUDES THE CARGO MINE MAS SEQ#0060250242.

Reserves and resources

  • Type In-situ
    Estimate year 1994
    Demonstrated 4808000mt ore
    Total resources 4808000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.09 g/mt Gold Major 1994
  • Type In-situ
    Estimate year 1994
    Demonstrated 3109800mt ore
    Total resources 3109800mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.68 g/mt Gold Major 1994
  • Type In-situ
    Estimate year 1996
    Demonstrated 4190400mt ore
    Total resources 4190400mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.92 g/mt Gold Major 1996
  • Type In-situ
    Estimate year 1996
    Inferred 386036mt ore
    Total resources 386036mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 7.65 g/mt Gold Major 1996
  • Type In-situ
    Estimate year 1996
    Demonstrated 6076000mt ore
    Total resources 6076000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.71 g/mt Gold Major 1996

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN PIT
  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method COMBINED METHODS

Reference information

Bibliographic references

  • Production

    HECLA MINING COMPANY 1995 FORM 10-K REPORT, P21.

  • Reserve-Resource

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

  • Reserve-Resource

    COMPANIES, PP. 219, 220.

  • Reserve-Resource

    AMERICAN MINES HANDBOOK, 1996, P122.

  • Reserve-Resource

    HECLA MINING COMPANY 1995 ANNUAL REPORT, P20.

  • Reserve-Resource

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

  • Reserve-Resource

    COMPANIES, P148.

  • Deposit

    CALIF. JOUR. MINES AND GEOL., V. 38, 1942, P. 113-114.

  • Deposit

    CALIF. DIV. MINES AND GEOL. COUNTY REPORT 7, 1977, P. 47.

  • Deposit

    RANDOL MINING DIRECTORY, 1990.

  • Deposit

    EASTMAQUE GOLD MINES LTD. 1988 ANNUAL REPORT. 1989, 24 PP.

  • Deposit

    EQUINOX RESOURCES LTD. 1992 ANNUAL REPORT, P.1-5.

  • Deposit

    THE NORTHERN MINER, V79 N31, 10-4-93, P.1.

  • Deposit

    SKILLINGS' MININING REVIEW, 1-15-94, P.36.

  • Deposit

    HECLA MINING COMPANY 1994 ANNUAL REPORT, P.10, 20, 21.

  • Deposit

    HECLA MINING COMPANY 1994 FORM 10-K REPORT, P14.

  • Deposit

    DOW JONES BUSINESS NEWS. SEPT. 5, 1996, MK GOLD TO SUSPEND

  • Deposit

    MINING AT AMERICAN GIRL SITE; 115 MINERS LAYIED OFF, P1.

  • Deposit

    HECLA MINING COMPANY NEWS RELEASE, 9-5-96.

  • Deposit

    AMERICAN MINES HANDBOOK, 1996, PP. 167, 168.

  • Deposit

    THE MINING RECORD, VOL., 107, #37, SEPTEM. 11, 1996, P5.

  • Deposit

    EQUINOX RESOURCES LTD., 1992 ANNUAL REPORT.

  • Deposit

    AMERICAN METALS MARKET, VOL., 104, #175, 9/10/96, P1.

  • Deposit

    MK GOLD COMPANY NEWS RELEASE, SEPT, 5, 1996.

  • Deposit

    MK GOLD CO., 1996 ANNUAL & FORM 10-K REPORTS, PP. I-5, I-6.

General comments

Subject category Comment text
Deposit 5 MILES NE OF OGILBY.

Reporter information

Type Date Name Affiliation Comment
Reporter 08-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.