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  3. Mineral Resource Data System (MRDS)

Bligh Island (Alaska Commercial Co.)

Prospect in Alaska, United States with commodity Gold
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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 10307350
Record type Site
Current site name Bligh Island (Alaska Commercial Co.)

Geographic coordinates

Geographic coordinates: -146.74254, 60.87959 (WGS84)
Relative position This prospect is at sea level near the northeastern end of Bligh Island. It is in the N1/2 sec. 36, T. 11 S., R. 9 W., of the Copper River Meridian. The site is accurately located to within 2000 ft. This prospect is shown as site C-94 in Jansons and other (1984) and as loc. 2 in Cobb (1972: MF-392).

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cordova D-8 NE(quadrangle 1:24,000 scale)

Cordova NW(quadrangle 1:100,000 scale)

Cordova(quadrangle 1:250,000 scale)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Quartz Gangue

Nearby scientific data

(1) -146.74254, 60.87959
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The prospect is in volcanic rock of the Tertiary Orca Group (Nelson and other, 1985). Capps and Johnson (1913) describe an auriferous quartz vein in greenstone. In 1915 they reported values of 121 oz Au/ton, but that the prospect was mined out (Capps and Johnson, 1915) and the shaft caved. Recent sampling of the prospect area yielded values of gold ranging from <0.03 ppm to 0.03 ppm (Jansons and others, 1984).
  • Age = Probably Tertiary based on the age of the host rock.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Copper River

Comments on the workings information

  • Workings / Exploration = Recent sampling of the prospect area yielded values of gold ranging from <0.03 ppm to 0.03 ppm (Jansons and others, 1984).

Reference information

Bibliographic references

  • Deposit

    Capps, S.R., and Johnson, B.L., 1913, Mineral deposits of the Ellamar district: U.S. Geological Survey Bulletin 542, p. 86-124.

  • Deposit

    Capps, S.R., and Johnson, B.L., 1915, The Ellamar district, Alaska: U.S. Geological Survey Bulletin 605, 125 p.

  • 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

    Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, scale 1:250,000.

  • Deposit

    Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16 p., 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Cordova quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-392, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Cobb, 1972 (MF-392)

General comments

Subject category Comment text
Deposit Other Comments = Chugach Alaska Corporation, Anchorage, Alaska has control of these lands.

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.