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  3. Mineral Resource Data System (MRDS)

Unnamed (east side of upper Kupreanof Peninsula)

Occurrence in Alaska, United States with commodities Lead, Arsenic
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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 10308227
Record type Site
Current site name Unnamed (east side of upper Kupreanof Peninsula)

Geographic coordinates

Geographic coordinates: -159.52244, 55.80926 (WGS84)
Relative position This occurrence is on the east side of upper Kupreanof Peninsula. The map site is at an elevation of 1,500 feet, just east of the midpoint of the boundary between secs. 5 and 32, T. 50 and 51 S., R. 66 W., of the Seward Meridian. It is referred to as SBRGX-49 in Wilson and others (1988, locality 23). 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-5(quadrangle 1:63,360 scale)

Stepovak Bay(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
Lead Primary
Arsenic Critical Secondary

Nearby scientific data

(1) -159.52244, 55.80926
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence is volcanic rocks of the Eocene to Oligocene Meshik Formation (Wilson and others, 1995). At the site, an olivine basalt dike cuts tuff and altered and mineralized dacite (Wilson and others, 1988). A rock sample collected by the U.S. Geological Survey was reported to be anomalous in arsenic and lead (Wilson and others, 1988). The alteration and mineralization are not described.
  • Age = Eocene or younger.

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 sample 84ADt181, collected by the U.S. Geological Survey in the mid-1980's, was reported to be anomalous in arsenic and lead (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 occurrence 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 09-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.