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

Johnny Mountain

Past Producer in British Columbia, Canada 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. Commodities
  6. Nearby scientific data
  7. Ore body information
  8. Economic information about the deposit and operations
  9. Mining district
  10. Ownership information
  11. Production statistics
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10230228
MAS/MILS ID 1220100087
Record type Site
Current site name Johnny Mountain
Alternate or previous names Harmer Mine, Reg Claims, Stonehouse, Homestake, Mcfadden, Pickaxe

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -131.06291, 56.62477 (WGS84)
Elevation 2000
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bradfield Canal C-5 OE E(quadrangle 1:63,360 scale)

Bradfield Canal NW(quadrangle 1:100,000 scale)

Bradfield Canal(quadrangle 1:250,000 scale)

Geographic areas

Country State
Canada British Columbia

Commodities

Commodity Importance
Copper Tertiary
Gold Primary
Silver Secondary

Nearby scientific data

Ore Body (1) -131.06291, 56.62477
ListMap

Economic information

Ore body information

  • Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin OTHER
    Primary Ore Control OTHER
    Date of Last Modification 871103

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No
Mining method Shrinkage Methods
Year of first production 1988
Milling method Flotation

Mining district

District name Laird

Ownership information

  • Type Owner-Operator
    Owner Skyline Gold Corp.
    Interest 100
    Home office Canada
    Year 1990

Production statistics

  • Year 1989
    Description 18.8 G Au 91000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 91000mt 19g/mt
  • Year 1990
    Description 97115 Mt Ore

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Inferred 333900000mt ore
    Total resources 333900000mt ore
    Commodity Subtype Grade units Group Importance Year
    Ash Ash 9.5 wt-pct Ash 1986
    Sulfur S 0.4 wt-pct Sulfur 1986
  • Type In-situ
    Estimate year 1988
    Demonstrated 173000mt ore
    Total resources 173000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 25.5 g/mt Gold Major 1988
  • Type In-situ
    Estimate year 1988
    Inferred 449000mt ore
    Total resources 449000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 17.2 g/mt Gold Major 1988
  • Type In-situ
    Estimate year 1988
    Total resources 622000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 19.6 g/mt Gold Major 1988
  • Type In-situ
    Estimate year 1988
    Total resources 794644mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 18.86 g/mt Gold Major 1988
  • Type In-situ
    Estimate year 1988
    Demonstrated 173000mt ore
    Total resources 173000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 25.5 g/mt Gold Major 1988

Comments on the reserve resource information

  • CMH 1989-90, P. 419; CMH 1990-91, P. 406; (12/31/88)
  • PRODUCTION STARTED 8/88 BUT TEMP SD FALL 1990 DECLINING RES. SEEKS FUNDING FOR FURTHER DD. SUBSTANTIAL PORTION OF PROPERTY REMAINS UNEXPLORED.
  • 14000 REFERS TO BTU; COAL HEAT "VALUE"

Workings at the site

  • Type of workings Surface
    Area 650HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method STRIP-LEVEL
    Avg. Bench Height (meters) 15

Comments on other economic factors

  • PROD COSTS ARE REFERRED TO AS $/MT CONC; CONC = COAL REC.

Reference information

Bibliographic references

  • Reserve-Resource

    CANADIAN MINES HANDBOOK 1990-91, P.406

  • Reserve-Resource

    CANADIAN MINES HANDBOOK 1989-90, P.419

  • Reserve-Resource

    NORTHERN MINER, 6/18/90, P. B9.

  • Deposit

    PRIVATE SOURCE (COMMENT: B-001)

Comments on the references

  • METALS ECONOMICS GROUP. ACTIVE CANADIAN GOLD MINES. 8/91.

Reporter information

Type Date Name Affiliation Comment
Reporter 05-JAN-1995 Porter, Kenneth E. 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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