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

Twelvemile Creek

Past Producer in Alaska, United States with commodities Gold, Silver
Map
XML
JSON
KML
B
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. Ownership information
  12. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10112096
MRDS ID A011049
MAS/MILS ID 0020300052
Record type Site
Current site name Twelvemile Creek
Alternate or previous names Twelve Mile Cr S Fork, Good Hope Assn., Sandra Lee, Dodie's Dream Association
Related records 10000594

Geographic coordinates

Point of reference Claim
Geographic coordinates: -150.3464, 67.18108 (WGS84)
Elevation 305
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Wiseman A-1(quadrangle 1:63,360 scale)

Wiseman SE(quadrangle 1:100,000 scale)

Wiseman(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Fairbanks 027 N 013 W 11 SWSWNE Alaska

Comments on the location information

  • REF. POINT IS LOCATED AT CONFLUENCE OF TWELVEMILE CREEK AND MIDDLE FORK KOYUKUK RIVER. PROSPECTS OCCUR ON TWELVEMILE CR. 162 OZ AU, 14 OZ AG PRODUCED AS OF 1938.

Commodities

Commodity Importance
Gold Primary
Silver Tertiary

Nearby scientific data

Claim (1) -150.3464, 67.18108
ListMap

Economic information

Economic information about the deposit and operations

Operation type Placer
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category State

Ownership information

  • Type Owner-Operator
    Owner Walter And Dorris Kopp
    Year 1981

Production statistics

  • Year 1922
    Description 2,100 Yards Processed. 53 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 1676g/mt
  • Year 1924
    Description 19 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 601g/mt
  • Year 1925
    Description 48 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 1518g/mt
  • Year 1926
    Description 52 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 1644g/mt
  • Year 1927
    Description 14 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 443g/mt
  • Year 1936
    Description 147 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 4649g/mt
  • Year 1942
    Description 2 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 63g/mt

Reference information

Bibliographic references

Reporter information

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

Beyond USGS

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

Maps centered on this site

Authoritative Alaska resources

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