1. Mineral Resources
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  3. Mineral Resource Data System (MRDS)

Unnamed (north of Mitrofania Harbor)

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

Geologic information

Identification information

Deposit ID 10308224
Record type Site
Current site name Unnamed (north of Mitrofania Harbor)

Geographic coordinates

Geographic coordinates: -158.70244, 55.98928 (WGS84)
Relative position This site is on the Alaska Peninsula about 0.6 mile north of inner Mitrofania Harbor. It is referred to as SBRGX-46 in Wilson and others (1988, locality 20). The map site is in the SE1/4 of sec. 30, T. 48 S., R. 60 W., of the Seward Meridian. The location is accurate to within 1 mile.

Site location context

Political divisions (FIPS codes)

Lake and Peninsula(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Stepovak Bay D-3(quadrangle 1:63,360 scale)

Mitrofania Island(quadrangle 1:100,000 scale)

Stepovak Bay(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Shelikof Strait(hydrologic unit)

Kodiak-Shelikof(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Alaska Peninsula National Wildlife Refuge(National Wildlife Refuge)

National Wildlife Refuge FWS(Type of land area)

FWS(Federal land areas administered by FWS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Zinc Critical Primary
Antimony Critical Secondary

Nearby scientific data

(1) -158.70244, 55.98928
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence is probably in a mudstone unit of the Upper Cretaceous Hoodoo Formation (Wilson and others, 1995). At this location hornfelsed mudstone crops out near hypabyssal andesite or dacite plugs and dikes (Wilson and others, 1988). Samples collected by the U.S. Geological Survey were reported to be anomalous in antimony, copper, and zinc (Wilson and others, 1988).

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Alaska Peninsula

Comments on the workings information

  • Workings / Exploration = Rock samples 84ACe117 and 84ACe 122, collected by the U.S. Geological Survey in the mid-1980's, were reported to be anomalous in antimony, copper, and zinc (Wilson and others, 1988).

Reference information

Bibliographic references

  • Deposit

    Angeloni, L.M., Wilson, F.H., and Sutlet, S., 1985, Map and tables showing preliminary rock geochemical data, Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Open-File Report 85-470, 179 p., 1 map sheet, scale 1:250,000.

  • Deposit

    Wilson, F.H., White, W.H., and DuBois, G.D., 1988, Brief descriptions of mines, prospects, and mineral occurrences in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 88-666, 128 p., scale 1:250,000.

  • Deposit

    Wilson, F.H., Detterman, R.L., Miller, J. W., and Case, J.E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-2272, 1 map sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Wilson and others, 1988

General comments

Subject category Comment text
Deposit Other Comments = This site is in the Alaska Peninsula National Wildlife Refuge, near the boundary of land selected by the Bristol Bay Native Corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 08-NOV-00 S.H. Pilcher 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.