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  3. Mineral Resource Data System (MRDS)

Dry Spruce Island

Past Producer 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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10002657
MRDS ID A015097
Record type Site
Current site name Dry Spruce Island
Related records 10233642

Geographic coordinates

Geographic coordinates: -153.02441, 57.95247 (WGS84)
Relative position This mine is located at the east end of Dry Spruce Island (Berg and Cobb, 1967, figure 15, locality 3; Cobb, 1972, MF 460, locality 10; McGee, 1972, locality 5; MacKevett and Holloway, 1977, locality 10). Site locality is accurate to within 1/4 mile.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Kodiak D-4 NE(quadrangle 1:24,000 scale)

Kodiak NW(quadrangle 1:100,000 scale)

Kodiak(quadrangle 1:250,000 scale)

Federal lands

Afognak Native Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

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

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -153.02441, 57.95247
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This deposit was first located in 1902 and consists of Cretaceous metasedimentary rock cut by a network of quartz veins and bunches that generally strike northeast and dip vertically. The veins typically pinch and swell and may be up to 18 inches thick. Some pinch out over short distances. The quartz is white and vesicular and is slighty iron-stained in places but generally shows little mineralization. It is reported that some high assays were obtained and that several tons of ore were shipped to the Amok Gold Mine (KD001) and milled there. The description by Capps (1937) is the latest information available.
  • Age = Cretaceous or younger

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Kodiak

Comments on the workings information

  • Workings / Exploration = This site was developed by a 30- to 40-foot shaft, a 95-foot-long adit, and a 10-foot-long cross-cut. Several tons of ore were reportedly shipped for milling.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Capps, 1937

General comments

Subject category Comment text
Deposit Model Name = Chugach-type low-sulfide gold-quartz vein (Bliss, 1992; model 36a.1), turbidite-hosted gold vein.
Deposit Other Comments = Site is on land conveyed to the Koniag Corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 02-OCT-1998 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.