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Tuluksak River Placer Mine

Producer in Alaska, United States with commodities Gold, Silver, Copper
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Geologic information

Identification information

Deposit ID 10107537
MRDS ID A013386
Record type Site
Current site name Tuluksak River Placer Mine
Alternate or previous names Nyac Mine In Russian Mission Quadrangle
Related records 10160920

Geographic coordinates

Geographic coordinates: -159.9895, 60.98876 (WGS84)
Elevation 137
Relative position ON TULUKSAK RIVER, 2 MI. SW OF NYAC (IN RUSSIAN MISSION QUAD).
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-455, LOCS. 3, 11. LOCATION IS IN MIDDLE OF DREDGED AREA. PLACER DEPOSIT EXTENDS AT LEAST 1.5 MI. UPSTREAM AND DOWNSTREAM (NE-SW) FROM LOCATION. 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
Silver Secondary
Copper Tertiary

Comments on the commodity information

  • RATIO OF AU: AG NOT KNOWN

Materials information

Materials Type of material
Silver Ore

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Alluvium
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -159.9895, 60.98876
ListMap

Comments on the geologic information

  • MAJOR.UNITS: BEDROCK IS CRETACEOUS ANDESITE OF KUSKOKWIM GROUP. ; REG.COM: SOURCE OF PLACER GOLD NOT KNOWN.

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1907
Year of last production 1985

Mining district

District name Aniak

Comments on the workings information

  • DREDGE TAILINGS AT LEAST 3 MI. LONG AND UP TO 0.5 MI. WIDE (AVERAGE 0.25 MI.). FLUME, AIRSTRIP, AND POWER TRANSMISSION LINE VISIBLE ON TOPO MAP.

Comments on development

  • GOLD PROBABLY DISCOVERED IN 1907 OR 1908. DREDGING CONDUCTED UNTIL 1964. TULUKSAK DREDGING CO. OPERATED DREDGE FROM 1972 THROUGH 1985. NORTHLAND DREDGING CO. DRILLED IN 1982-83, PREPARED FOR DREDGING IN 1985.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013386

Bibliographic references

  • Deposit

    USGS MF-455, LOCS. 3, 11 (1972)

  • Deposit

    USGS I-285 (1959)

  • Deposit

    USGS OF 77-156, P. 25 (1977)

  • Deposit

    USGS B 622, P. 300 (1915)

  • Deposit

    ADGGS SR 39, P. 27 (1986)

  • Deposit

    WESTERN MINER, V. 57, NO. 4, P. 35-36, APRIL, 1984

  • Other Database

    BAG-MF-455-3, 11

General comments

Subject category Comment text
Deposit Discovery Year: 1907-1908?
Deposit STREAM GRADIENT LESS THAN 50 FT./MI.. PART OF PLACER IS IN RUSSIAN MISSION QUAD NEAR NYAC. NORTHLAND DREDGING CO. HAS BEEN ATTEMPTING TO RESUME DREDGING OF PLACER SINCE 1982, BUT LEGAL AND ENVIRONMENTAL DIFFICULTIES PREVENTED THIS THROUGH 1985. ; INFO.SRC : 1 PUB LIT
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Deposit PLACER CONSISTS OF FLOODPLAIN ALLUVIUM (MUD, SILT, SAND, GRAVEL, BOULDERS) AT LEAST 3 MI. LONG WITHIN BETHEL QUAD, AND UP TO 0.5 MI. WIDE. TRACES OF COPPER MINERALS IN ANDESITIC BEDROCK BROUGHT UP BY DREDGE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1987 Niles, L.P. (Huber, D.F.) U.S. Geological Survey