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  3. Mineral Resource Data System (MRDS)

Unnamed (near mouth of Simpson Creek)

Occurrence in Alaska, United States with commodities Copper, Zinc
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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. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10307375
Record type Site
Current site name Unnamed (near mouth of Simpson Creek)

Geographic coordinates

Geographic coordinates: -145.84151, 60.6926 (WGS84)
Relative position This occurrence is at an elevation of about 100 feet at the head of Simpson Bay near the mouth of Simpson Creek. It is in the SE1/4 sec. 36, T. 13 S., R. 4 W., of the Copper River Meridian. The location is accurate to within 1000 ft. This location is site C-51 in Jansons and others (1984).

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Cordova NW(quadrangle 1:100,000 scale)

Cordova C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Eastern Prince William Sound(hydrologic unit)

Prince William Sound(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Chugach National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Zinc Critical Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore

Nearby scientific data

(1) -145.84151, 60.6926
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence consists of sulfide-bearing stream-sediment float samples of slate. Sulfide minerals are chalcopyrite, pyrite, pyrrhotite, and sphalerite (Jansons and others, 1984). Analyses of two grab samples contained 140 ppm and 1.6% Zn, and 35 ppm and 0.16% Cu.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Copper River

Comments on the workings information

  • Workings / Exploration = Area examined by the U.S. Bureau of Mines as part of a mineral evaluation of the Chugach National Forest. Analyses of two grab samples contained 140 ppm and 1.6% Zn, and 35 ppm and 0.16% Cu (Jansons and others, 1984).

Reference information

Bibliographic references

  • Deposit

    Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, Southcentral Alaska: U.S. Bureau of Mines Open-File Report 5-84, 218 p., 2 sheets, scale 1:250,000.

Comments on the references

  • Primary Reference = Jansons and others, 1984

General comments

Subject category Comment text
Deposit Other Comments = Occurrence is on Chugach Regional Corporation land.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUN-00 S.W. Nelson 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.