Bear Creek

Past Producer in Alaska, United States with commodities Gold, Silver, Iridium, Osmium, Lead, Palladium, Platinum, Rhodium, Ruthenium, Zinc
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 10308800
MRDS ID A015716
Record type Site
Current site name Bear Creek
Related records 10107560

Geographic coordinates

Geographic coordinates: -161.08333, 65.5494 (WGS84)
Relative position The Bear Creek placer mine is along about a mile of Bear Creek between Polar and Bob Creek. The coordinates are for the camp at the junction of Split Creek, on the boundary of sections 23 and 24, T. 2 N., R. 12 W., of the Kateel River Meridian. Cobb, 1972 (MF-389), locations 29 and 30. Also see Additional comments.

Site location context

Political divisions (FIPS codes)

Northwest Arctic(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Candle N(quadrangle 1:100,000 scale)

Candle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Buckland River(hydrologic unit)

Northern Seward Peninsula(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Iridium Critical Secondary
Osmium Secondary
Lead Secondary
Palladium Critical Secondary
Platinum Critical Secondary
Rhodium Critical Secondary
Ruthenium Critical Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Gold Ore
Platinum Ore
Pyrite 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) -161.08333, 65.5494

Economic information

Comments on the geologic information

  • Geologic Description = Bedrock in the mine area is predominately altered, Jurassic andesitic tuff and greenstone which are cut by mafic and felsic dikes. Quartz and calcite veins carry disseminated sulfides. Breccia zones in greenstones also carry disseminated sulfides and have a thin, oxidized cap which carries some gold. Abundant heavy, red, cherty rock in the placer concentrate occurs as crosscutting veins and irregular masses in greenstone. At the Bear Creek gold placer flaky gold and platinum occur on bedrock or in cracks in upper several inches of bedrock. During mining bedrock must be thoroughly cleaned since much of the gold is close to or in cracks in bedrock. The bedrock surface is very irregular. Concentrates contained gold, platinum, magnetite, hematite, pyrite, garnet and chrome spinel (Harrington, 1919). The gold was flaky and worth $19.20 per ounce in 1905. Analysis of platinum minerals from placer concentrate gave the following results: 72.82% Pt; 15.58% Ir, 8.17% Os, 2.29% Ru, 0.78% Rh, and 0.36% Pd (Moffit, 1905).
  • Age = Quaternary.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairhaven

Comments on the workings information

  • Workings / Exploration = Small-scale placer mining has been done on Bear Creek since the early 1900s, continuing intermittently until at least the 1960's. Most of the mining has been above and below Split Creek (Herreid, 1965).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Harrington, 1919; Herreid, 1965

General comments

Subject category Comment text
Deposit Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a).
Deposit Other Comments = Some of the names associated with early mining claims are: Douglass and Edwards, Douglass and Milligrock, Hoxie, Tendness and Barr, Porter, and Wright. Prospecting work was done near the airstrip in 1964 (Herreid, 1965).

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.