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Four-in-One

Prospect in Alaska, United States with commodities Silver, Gold, Copper, Nickel
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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 10003445
MRDS ID A106202
Record type Site
Current site name Four-in-One

Geographic coordinates

Geographic coordinates: -147.29258, 61.08958 (WGS84)
Relative position Prospect is on the north-facing slope above the eastern tributary of Miners River, about 1.1 miles west of Kadin Lake. Accurate within 1 mile. Locality A-8 of Jansons and others (1984) and locality 72 of Hoekzema (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

Anchorage A-1(quadrangle 1:63,360 scale)

Anchorage SE(quadrangle 1:100,000 scale)

Anchorage(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
Silver Primary
Gold Primary
Copper Primary
Nickel Critical Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Nearby scientific data

(1) -147.29258, 61.08958
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Two mineralized shear zones in conglomerate of the Early Tertiary Orca Group range from 5 to 100 ft wide and contain sulfide veinlets and pods of chalcopyrite and pyrite. Five chip samples contained from 20 ppm to 3 percent Cu and 2.6 to 46 ppm Ag. Four grab samples contained from 195 ppm to 0.94 percent Cu, 2.7 to 8.8 ppm Ag, and 9 ppm to 0.18 percent Ni (Jansons and others, 1984).
  • Age = Paleocene or younger based on the age of the bedrock.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Prince William Sound

Comments on the production information

  • Production Notes = There has been no reported production.

Comments on the reserve resource information

  • Reserves = Hoekzema (1984) reported that the inferred reserves are 33,500 tons at 0.22 percent Cu and 21.2 ppm Ag. The potential for mineral development is low.

Comments on the workings information

  • Workings / Exploration = According to Jansons and others (1984), a 60 ft adit and open pits were present. The U.S. Bureau of Mines (Jansons and others, 1984) reported five chip samples contained from 20 ppm to 3 percent Cu and 2.6 to 46 ppm Ag. Four grab samples contained from 195 ppm to 0.94 percent Cu, 2.7 to 8.8 ppm Ag, and 9 ppm to 0.18 percent Ni. The potential for mineral development is low.

Reference information

Bibliographic references

  • Deposit

    Hoekzema, R.B., 1984, Strategic and critical mineral development potential of the Chugach National Forest, southcentral Alaska: U.S. Bureau of Mines Open-File Report 215-84, 64 p., 1 sheet.

  • 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

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.