Winston Lake

Producer in Ontario, Canada with commodities Lead, Zinc
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. Ownership information
  9. Reserves and resources
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10181448
MAS/MILS ID 1220400134
Record type Site
Current site name Winston Lake
Alternate or previous names Zenmac

Geographic coordinates

Geographic coordinates: -87.25, 48.8 (WGS84)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Ontario

Commodities

Commodity Importance
Lead Secondary
Zinc Critical Primary

Nearby scientific data

(1) -87.25, 48.8

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Mining method Filled Stopes - Horiz Cut and Fill W/Tailings
Year of first production 1988
Milling method Flotation

Ownership information

  • Type Owner-Operator
    Owner Inmet Mining Corp.
    Interest 100
    Home office Canada
    Year 1996

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Indicated 1808799mt ore
    Demonstrated 1808799mt ore
    Inferred 775200mt ore
    Total resources 2583999mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 21.4 wt-pct Zinc Major 1986
    Copper Cu 1.32 wt-pct Copper 1986
    Silver Ag 39.6 g/mt Silver 1986
    Gold Au 1.3699 g/mt Gold 1986
  • Type In-situ
    Estimate year 1986
    Inferred 7752080mt ore
    Total resources 7752080mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 13.9 wt-pct Zinc Major 1986
    Copper Cu 0.96 wt-pct Copper 1986
    Silver Ag 28.8 g/mt Silver 1986
    Gold Au 1.0099 g/mt Gold 1986
  • Type In-situ
    Estimate year 1993
    Demonstrated 1830000mt ore
    Total resources 1830000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 13.8 wt-pct Zinc Major 1993

Reference information

Bibliographic references

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUN 93,P. 48.

Reporter information

Type Date Name Affiliation Comment
Reporter 11-MAR-1997 Unknown U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.