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  3. Mineral Resource Data System (MRDS)

Lewis River Placers

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. 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 10001140
MRDS ID A011833
Record type Site
Current site name Lewis River Placers
Related records 10304511

Geographic coordinates

Geographic coordinates: -150.84158, 61.43146 (WGS84)

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tyonek B-3(quadrangle 1:63,360 scale)

Tyonek SE(quadrangle 1:100,000 scale)

Tyonek(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Yentna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • PLACER OPERATIONS WERE IN CANYON TO THE S OF LOCATION GIVEN; EXTENDING FOR ABOUT 3 MI DOWNSTREAM FROM MINE NEAR THE LANDING STRIP LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Nearby scientific data

(1) -150.84158, 61.43146
ListMap

Economic information

Comments on the geologic information

  • MAJOR.UNITS: MAINLY JURASSIC OR CRETACEOUS GRANITIC ROCKS AND A SMALL PATCH OF TERTIARY CONGLOMERATE UNDERLIE STREAM COURSE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Redoubt

Comments on development

  • ABOUT 97 OZ RECOVERED IN 1916; MAY HAVE BEEN SMALL AMOUNT OF AU PRODUCED IN 1956-57; HAS BEEN DRILLED

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit PLACER GOLD IN STREAM CHANNELS AND ALLUVIAL FLATS; BEDROCK 12-22 FT BELOW SURFICIAL GRAVELS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1985 Leonard, Kenneth R. (Elliott, R. 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.