Forty Mile River, Mosquito Fork

Past Producer in Alaska, United States with commodities Gold, Thorium, Tin, Tungsten, Uranium
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mineral rights holdings
  10. Land status
  11. Production statistics
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10233656
MRDS ID A015159
MAS/MILS ID 0020600033
Record type Site
Current site name Forty Mile River, Mosquito Fork
Related records 10002714

Geographic coordinates

Point of reference Claim
Geographic coordinates: -141.99298, 64.06445 (WGS84)
Elevation 515
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Southeast Fairbanks(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Eagle A-2(quadrangle 1:63,360 scale)

Eagle SE(quadrangle 1:100,000 scale)

Eagle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Fortymile River WSR(Wild and Scenic River)

Wild and Scenic River UND(Type of land area)

UND(Federal land areas administered by UND)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 026 N 017 E 01 Alaska

Commodities

Commodity Importance
Gold Primary
Thorium Tertiary
Tin Critical Tertiary
Tungsten Critical Tertiary
Uranium Tertiary

Nearby scientific data

Claim (1) -141.99298, 64.06445

Economic information

Economic information about the deposit and operations

Operation type Placer
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1921

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category Federal

Production statistics

  • Year 1921
    Description 6,000 Yards Processed. 290 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 9020g
  • Year 1925
    Description 16 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 497.65g
  • Year 1941
    Description 2 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 62.2g
  • Year 1949
    Description 2 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 62.2g
  • Year 1949
    Description 14 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 435.44g
  • Year 1960
    Description 7 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 217.72g
  • Year 1960
    Description 1 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 31.1g
  • Year 1961
    Description 8 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 248.82g
  • Year 1961
    Description 50 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 1555.17g

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 12-FEB-1988 Mirl-Mjn U.S. Bureau of Mines

Beyond USGS

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

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.