1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Eskay Creek

Plant in British Columbia, Canada with commodities Copper, Gold, Lead, Silver, Zinc
Map
XML
JSON
KML
B
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. Land status
  10. Ownership information
  11. Production statistics
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10133424
MAS/MILS ID 1220100100
Record type Site
Current site name Eskay Creek
Alternate or previous names Macy Adit, Pumphouse, Red Bluff

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -130.46709, 56.64978 (WGS84)
Elevation 1140
Location accuracy 250(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bradfield Canal(quadrangle 1:250,000 scale)

Geographic areas

Country State
Canada British Columbia

Commodities

Commodity Importance
Copper Tertiary
Gold Primary
Lead Tertiary
Silver Primary
Zinc Critical Tertiary

Nearby scientific data

Ore Body (1) -130.46709, 56.64978
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1932
Mining method Filled Stopes
Year of first production 1995
Plant type Leach
Plant subcategory Hydromet
Milling method Hydrometallurgy Unspecified

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Patented

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Prime Resources Group Inc.
    Interest 100
    Home office Canada
    Year 1997
  • Type Operator
    Owner Homestake Canada Inc.
    Home office Canada
    Year 1997
  • Type Owner-Operator
    Owner Prime Resources Group Inc.
    Interest 39
    Home office Canada
    Year 1991
  • Type Owner
    Owner Stikine Resources Ltd.
    Interest 39
    Home office Canada
    Year 1991
  • Type Owner
    Owner Placer Dome Inc.
    Interest 22
    Home office Canada
    Year 1991

Production statistics

  • Year 1995
    Description Ore Production 94438 Mt/Yr
  • Year 1995
    Description Contained Gold 196544 T Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 6113202.56g
  • Year 1995
    Description Contained Silver 9945345 T Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 309334849.24g

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Total resources 5888000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 484.7 g/mt Silver Major 1990
    Gold Au 18.35 g/mt Gold Major 1990
  • Type In-situ
    Estimate year 1991
    Demonstrated 3810000mt ore
    Total resources 3810000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 1019.7 g/mt Silver Major 1991
    Gold Au 26.7 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1991
    Indicated 1807000mt ore
    Demonstrated 1807000mt ore
    Total resources 1807000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 1912.1 g/mt Silver Major 1991
    Gold Au 50.4 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1992
    Demonstrated 1043000mt ore
    Total resources 1043000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 2566 g/mt Silver Major 1992
    Gold Au 63.8 g/mt Gold Major 1992
  • Type In-situ
    Estimate year 1993
    Demonstrated 1080000mt ore
    Total resources 1080000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 3230 g/mt Silver Major 1993
    Gold Au 72 g/mt Gold Major 1993
  • Type In-situ
    Estimate year 1997
    Demonstrated 1019676mt ore
    Total resources 1019676mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 2859.43 g/mt Silver Major 1997
    Gold Au 64.46 g/mt Gold Major 1997

Comments on the reserve resource information

  • DEMONSTRATED RESERVE BASED ON 0.40 OZ (13.7 G/MT) AU EQUIV CUTOFF (90:1 AU TO AG CONVERSION RAITO) AND A 27% ORE DILUTION/ MINE RECOVERY FACTOR. THE MINE RECOVERY AND GRADE OF THE DILUTING MATERIAL ARE UNKNOWN, THE EVALUATOR REPORTED ONLY THE MINEABLE AND DILUTED ORE RESERVE ESTIMATE. ADIT ADDED TO FILE; AUG. 27, 1996. WAS NOT ENTERED AT TIME OF PREVIOUS REVIEW, 06/95.

Reference information

Bibliographic references

  • Reserve-Resource

    THE NORTHERN MINER, 9/24/90, P.1,2.

  • Reserve-Resource

    MINING JOURNAL, 9/20/91, P.218.

  • Reserve-Resource

    INTERNATIONAL CORONA CORP. ANNUAL REPORT. 1991. P.20.

  • Reserve-Resource

    THE NORTHERN MINER, JUNE 1, 1992, PAGE 3.

  • Reserve-Resource

    CORONA CORP., 1990 ANNUAL REPORT, P.10.

  • Reserve-Resource

    NORTHERN MINER, 3/8/93, PP. 1, 2.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 1996-97, PP. 470, 348-349.

  • Deposit

    THE MINING RECORD, AUGUST 7, 1996, VOL 107, #32, P5.

  • Deposit

    "PRIME RESOURCES: EXPLORATION DRILLING AT ESKAY CREEK

  • Deposit

    EXTENDS ZONES".

  • Deposit

    NORTHERN MINES, 3/8/93, PP. 1, 2.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-NOV-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:

  • Placer Dome Inc. — acquired by Subsidiary of Barrick Gold (2006)
    Acquired by Barrick Gold in 2006.

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.

Maps centered on this site