Upper Sweepstakes Creek

Past Producer in Alaska, United States with commodity Gold
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10307306
Record type Site
Current site name Upper Sweepstakes Creek

Geographic coordinates

Geographic coordinates: -161.31332, 65.38939 (WGS84)
Relative position The upper Sweepstakes Creek placer mine is on upper Sweepstakes Creek about 1 mile west-southwest of the landing strip on Granite Mountain. This site includes a prospect approximately 2 miles downstream from the mine. The map site is at the mine symbol in section 15, T. 1 S., R. 13 W., of the Kateel River Meridian. Cobb, 1972 (MF-389), locations 39 and 40.

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Candle B-5(quadrangle 1:63,360 scale)

Candle S(quadrangle 1:100,000 scale)

Candle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Norton Bay(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) -161.31332, 65.38939

Economic information

Comments on the geologic information

  • Geologic Description = Gold has been placer mined from low bench deposits along the east side of the upper Sweepstakes Creek. Depth to bedrock is 15 feet on lower claims. Gravels in the creek bed are 6 to 14 feet deep. On benches 2 to 12 feet of muck overlies 2 to 8 feet of gravel. A few inches of partially-decomposed bedrock was excavated during mining (Harrington, 1919). Sweepstakes Creek drains the southwestern part of the Cretaceous Granite Mountain monzonite pluton. Heavy minerals in the concentrate include chrome spinel, garnet, hematite, hydrothorianite, ilmenite, magnetite, pyrite, uranothorianite, and zircon (Gault and others, 1953).
  • Age = Quaternary.

Economic information about the deposit and operations

Development status Past Producer

Comments on exploration

  • Status = Inactive

Mining district

District name Koyuk

Comments on the workings information

  • Workings / Exploration = Small-scale gold-placer mining took place on upper Sweepstakes Creek from the early 1900's until the 1950's. Numerous prospect pits have been dug along the stream benches. In 1947, the U.S. Geological Survey sampled the placer to evaluate its radioactive mineral content (Gault and others, 1953).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Harrington, 1919; Gault and others, 1953

General comments

Subject category Comment text
Deposit Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a).

Reporter information

Type Date Name Affiliation Comment
Reporter 12-JAN-00 Williams, Anita U.S. Geological Survey

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.