Capitol Hill

Past Producer in Alaska, United States with commodities Silver, Gold, Copper

Geologic information

Identification information

Deposit ID 10003428
MRDS ID A106185
Record type Site
Current site name Capitol Hill

Geographic coordinates

Geographic coordinates: -148.1526, 61.09956 (WGS84)
Relative position Located on the eastern shore of Barry Arm, near BM Acute (south of Barry Glacier). Accurate within 0.5 miles. Locality 55 of Cobb (1972), locality 43 of MacKevett and Holloway (1977), and locality A-28 of Jansons and others (1984).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Copper Primary

Mineral occurrence model information

Model code 274
USGS model code 36a.1
Deposit model name Low-sulfide Au-quartz vein, Chugach-type
Mark3 model number 26

Nearby scientific data

(1) -148.1526, 61.09956

Comments on the geologic information

  • Geologic Description = Quartz vein cuts metasedimentary rocks of the Late Cretaceous Valdez Group. The vein contains gold, silver, and copper (Martin, 1920).
  • Age = Late Cretaceous or younger based on age of bedrock.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Prince William Sound

Comments on the production information

  • Production Notes = No reported production.

Comments on the workings information

  • Workings / Exploration = A 40 ft tunnel was driven , but no ore was shipped (Martin, 1920).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A106185
USGS Alaska Resource Data File ARDF AN124

Bibliographic references

  • Deposit

    Martin, G.C., 1920, The Alaska mining industry in 1918: U.S. Geological Survey Bulletin 712-A, p. 1-52.

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.

  • 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.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Anchorage quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-409, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials in the Anchorage quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1095, 184 p.

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.

Comments on the references

  • Primary Reference = Martin, 1920

General comments

Subject category Comment text
Deposit Model Name = Chugach-type low-sulfide Au-quartz veins (Bliss, 1992; model 36a.1 ?) or Epithermal Au vein ?

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