Mount Milligan

Prospect in British Columbia, Canada with commodities Copper, Gold
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. Reserves and resources
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10230435
MAS/MILS ID 1220100089
Record type Site
Current site name Mount Milligan
Alternate or previous names Mbx, Southern Star

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -124.02931, 55.12454 (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 British Columbia

Commodities

Commodity Importance
Copper Primary
Gold Primary

Nearby scientific data

Ore Body (1) -124.02931, 55.12454

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1986

Mineral rights holdings

Type of mineral rights Located Claim

Ownership information

  • Type Owner
    Owner Placer Dome Inc.
    Interest 100
    Home office Canada
    Year 1993
    First year 1990
    Last year 1992

Comments on the ownership information

  • PLACER DOME PURCHASED PROPERTY FROM CONTINENTAL GOLD & BP RES. IN 1990. PLACER DOME, FOLLOWING A REASSESMENT OF THE RESERVE ECONOMICS HAS WRITTEN OFF ITS $US 231M INVESTMENT.

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Demonstrated 400000000mt ore
    Total resources 400000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.48 g/mt Gold Major 1990
    Copper Cu 0.2 wt-pct Copper Major 1990
  • Type In-situ
    Estimate year 1992
    Demonstrated 298464000mt ore
    Total resources 298464000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.48 g/mt Gold Major 1992
    Copper Cu 0.22 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 237000000mt ore
    Total resources 237000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.54 g/mt Gold Major 1992
    Copper Cu 0.24 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1990
    Demonstrated 400000000mt ore
    Total resources 400000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.48 g/mt Gold Major 1990
    Copper Cu 0.2 wt-pct Copper Major 1990

Comments on the reserve resource information

  • DEMONS INSITU ORE RESOURCES USED IN THE 93 CANADIAN GOLD STUDY. RECOVERABLE ORE RESOURCES USED IN THE 93 CANADIAN GOLD STUDY.

Reference information

Bibliographic references

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 1991-92, PAGE 319.

  • Reserve-Resource

    MINING REVIEW, NOV/DEC, 1990, PAGE 4-11.

  • Reserve-Resource

    PLACER DOME INC., 1992 PRESS RELEASE, 2/3/92, PAG3 1, 2.

  • Reserve-Resource

    CRU INTERNATIONAL LTD., COPPER GREENFIELDS MINES PROJECTS

  • Reserve-Resource

    FOR THE 1990'S, PAGE 80-82, 1993.

Reporter information

Type Date Name Affiliation Comment
Reporter 15-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.

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.