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  3. Mineral Resource Data System (MRDS)

Ruby Gulch

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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10002626
MRDS ID A015063
Record type Site
Current site name Ruby Gulch
Related records 10112777

Geographic coordinates

Geographic coordinates: -158.20679, 62.06549 (WGS84)
Relative position USGS MF-363, Loc. 19. About 1,000 feet upstream from the mouth of Ruby Gulch.

Site location context

Political divisions (FIPS codes)

Bethel(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Iditarod A-5(quadrangle 1:63,360 scale)

Iditarod SW(quadrangle 1:100,000 scale)

Iditarod(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Aniak(hydrologic unit)

Lower Kuskokwim River(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Kuskokwim 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

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) -158.20679, 62.06549
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Gold is deposited on benches SE of Crooked Creek. Benches are entrenched to depths of 15-30 ft. by Ruby Gulch. Secondary gold concentration on benches is from reworked older bench placers.
  • Age = Tertiary/Quaternary

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Aniak

Comments on the production information

  • Production Notes = Mined in 1911 producing about 145 oz.

Comments on the workings information

  • Workings / Exploration = Surface

Reference information

Bibliographic references

  • Deposit

    Maddren, A.G., 1915, Gold placers of the lower Kuskokwim with a note on copper in the Russian Mountains: U.S. Geological Survey Bulletin 622-H, p. 292-360.

  • Deposit

    Cady, W.M., Wallace, R.E., Hoare, J.M., and Webber, E.J., 1955, The central Kuskokwim region, Alaska: U.S. Geological Survey Professional Paper 268, 132 p.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Iditarod quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-363, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Maddren, 1915

General comments

Subject category Comment text
Deposit Model Name = Placer: reconcentrated bench
Deposit Other Comments = Stream gradient about 200 ft. per mile.

Reporter information

Type Date Name Affiliation Comment
Reporter 25-MAY-1994 Powers, M.T. U.S. Geological Survey
Reporter 25-MAY-1994 Huber, D.F. U.S. Geological Survey
Reporter 25-MAY-1994 Miller, M.L. 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.