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  3. Mineral Resource Data System (MRDS)

Colomac Baton Lake

Plant in Northwest Territories, Canada 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. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mineral rights holdings
  9. Ownership information
  10. Production statistics
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10278819
MAS/MILS ID 1220300024
Record type Site
Current site name Colomac Baton Lake
Alternate or previous names Goldcrest, Baton Lake, Colomac Dike

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -115.08716, 64.39876 (WGS84)
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Northwest Territories

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

Ore Body (1) -115.08716, 64.39876
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1945
Mining method Open Pit
Year of first production 1990
Plant type Leach
Plant subcategory Hydromet
Milling method Carbon-In-Pulp-Electrowin

Mineral rights holdings

Type of mineral rights Private Lease

Ownership information

  • Type Owner-Operator
    Owner Royal Oak Mines Inc
    Interest 100
    Home office Canada
    Year 1997
    First year 1993
  • Type Owner-Operator
    Owner Neptune Resources Co.
    Interest 100
    Home office Canada
    Year 1997
    First year 1986
    Last year 1989
  • Type Owner
    Owner Northgate Exploration Ltd. (Owner Of Neptune Res Co)
    Interest 100
    Home office Canada
    Year 1997
    First year 1989
    Last year 1993
  • Type Operator
    Owner Neptune Resources Co.
    Home office Canada
    Year 1997
    First year 1989
    Last year 1993
  • Type Owner
    Owner Northwest Gold Corp.
    Interest 100
    Home office Canada
    Year 1992

Comments on the ownership information

  • ROYAL OAK MINES INC PURCHASED THE COLOMAC PROPERTY IN APRIL OF 1993. OWNER NAME CHANGED FROM ABM GOLD CORP. TO NORTHWEST GOLD CORP. NO HISORY OF THIS OWNERSHIP COULD BE FOUND.

Production statistics

  • Year 1990
    Description 1.88g Au 1045455 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 1045455mt 2g/mt
  • Year 1994
    Description Ore Milled @ 1.61 G Au 893668 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 893668mt 2g/mt
  • Year 1995
    Description Ore Milled @ 1.61 G Au 2472441 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 2472441mt 2g/mt
  • Year 1996
    Description Ore Milled @ 1.58 G Au 2733529 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 2733529mt 2g/mt

Comments on the production information

  • PRODUCTION STARTED 5/90; OPERATION CLOSED 5/91; AND WAS REOPEN IN 1994 BY ROYAL OAK MINES INC.
  • DESCRIPTION SHOWS MILL FEED GRADES.

Reserves and resources

  • Type In-situ
    Estimate year 1991
    Demonstrated 24221839mt ore
    Total resources 24221839mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.89 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1993
    Demonstrated 1778026mt ore
    Total resources 1778026mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.82 g/mt Gold Major 1993
  • Type In-situ
    Estimate year 1996
    Demonstrated 11117549mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.989 g/mt Gold Major 1996
  • Type In-situ
    Estimate year 1997
    Demonstrated 4800822mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.68 g/mt Gold Major 1997
  • Type In-situ
    Estimate year 1993
    Demonstrated 17780826mt ore
    Total resources 17780826mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.82 g/mt Gold Major 1993

Comments on the reserve resource information

  • RESERVES AS OF 12/31/96; PROV+PROB MINEABLE COG OF 1.03 G AU/MT INCLUDES CASS ZONE. DILU & MINE LOSS ACCOUNTED FOR.
  • "R" RECORD 4 ORE CUT OFF GRADE IS 1.03 G AU/MT ORE. INCL. DIL AND MINE LOSS AS WELL.
  • DATA FROM RESOURCES DATA SET. ADIT DATA REC. #3; 1993 PROPERTY EVALUATION REC.#9.

Reference information

Bibliographic references

  • Ownership

    ROYAL OAK MINES INC., 1995 FORM 10-K REPORT, P29.

  • Reserve-Resource

    THE NORTHERN MINER, 6/24/91, P. 17.

  • Reserve-Resource

    MINING JOURNAL, 03/05/93, PAGE 157.

  • Reserve-Resource

    THE NORTHERN MINER, 03/08/93, PAGES 1, 2.

  • Reserve-Resource

    ROYAL OAK MINES INC., 1995 FORM 10-K REPORT, P28.

  • Reserve-Resource

    ROYAL OAK MINES INC., 1996 FORM 10-K REPORT, P28.

  • Deposit

    ENERGY, MINES AND RESOURCES CANADA, CANADIAN MINERAL

  • Deposit

    DEPOSITS NOT BEING MINED IN 1980, MINERAL POLICY SECTOR

  • Deposit

    INTERNAL REPORT, MRI 80/7, MAY, 1980, P.259

  • Deposit

    NORTHERN MINER, JOHNSBY'S BIG TONNAGE LOW GRADE GOLD DEPOSIT

  • Deposit

    BEING WATCHED CLOSELY, JUNE 21, 1979, P.A22.

  • Deposit

    NORTHERN MINER, JOHNSBY'S LOW GRADE PROPERTY MORE ATTRACTIVE

  • Deposit

    AS GOLD PRICES RISE, SEPT. 13, 1979, P.25.

  • Deposit

    NORTHERN MINER, JOHNSBY MINES TO 'GO PUBLIC' TO DEVELOP BIG

  • Deposit

    LOW GRADE GOLD MINE, NOV. 20, 1980, P.31.

  • Deposit

    NORTHERN MINER, HYDRA MOVES ON JOHNSBY GOLD PROJECT, DEC. 4,

  • Deposit

    1980, P. 15.

  • Deposit

    PRIVATE SOURCE SEE COMMENTS; B-001, 002.

  • Deposit

    CANADIAN MINES HANDBOOK, 1996-97, PP. 374, 467.

Comments on the references

  • METALS ECONOMICS GROUP (MEG); "CURRENT ACTIVE CANADIAN GOLD AUGUST, 1991.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-JUL-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.

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