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Little Susitna River

Occurrence in Alaska, United States with commodities Copper, Tungsten
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10009646
MRDS ID D002735
Record type Site
Current site name Little Susitna River
Related records 10185616

Geographic coordinates

Geographic coordinates: -149.14268, 61.78956 (WGS84)
Relative position Multiple occurrences along upper reaches of Little Susitna River, centered near VABM Creek. Accurate within 1.5 miles upstream and downstream from plotted point. Locality 77-84 of Cobb (1972).

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Anchorage D-6(quadrangle 1:63,360 scale)

Anchorage NW(quadrangle 1:100,000 scale)

Anchorage(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Susitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Hatcher Pass Management Area-East(State Special Management Area)

State Special Management Area ST(Type of land area)

ST(Federal land areas administered by ST)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Tungsten Critical Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Ore
Pyrite Ore
Scheelite Ore

Nearby scientific data

(1) -149.14268, 61.78956
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Concentrate samples in stream gravels contain a few grains of scheelite and chalcopyrite (Jasper, 1967). Assays yielded up to 110 ppm Cu and 5 ppm Mo (Jasper, 1967). Nearby crystalline rocks include Tertiary to Cretaceous biotite-hornblende tonalite, and Jurassic amphibolite and foliated quartz diorite. Creek float dominantly quartz diorite.
  • Age = Jurassic or younger, based on ages of bedrock in the area.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Willow Creek

Comments on the workings information

  • Workings / Exploration = Assays yielded up to 110 ppm Cu and 5 ppm Mo (Jasper, 1967). Other pan concentrates include magnetite, pyrite, and zircon.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Jasper, 1967

Reporter information

Type Date Name Affiliation Comment
Reporter 30-JUL-1998 D.P. Bickerstaff U.S. Geological Survey
Reporter 30-JUL-1998 S.W. Huss U.S. Geological Survey

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.