Dexter Creek Placer

Past Producer in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10100992
MRDS ID A012934
Record type Site
Current site name Dexter Creek Placer
Related records 10160170

Geographic coordinates

Geographic coordinates: -165.32383, 64.58068 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • UPSTREAM LIMIT OF DREDGE TAILINGS AS MAPPED ON USGS C1 TOPO MAP; CREEK WAS MINED FROM MOUTH TO HEADWATER TRIBS. 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

Analytical data

Result AU WORTH $18.60/OZ, PRICE OF AU = $20.67, USGS BULLETIN 263, P. 209.

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -165.32383, 64.58068

Comments on the geologic information

  • STREAM GRAVELS: MICA SCHIST, LIMESTONE AND QUARTZ PEBBLES MIXED WITH LARGE BOULDERS OF LIMESTONE; BENCH DEPOSIT 100 YD ABOVE GROUSE G. CONSISTED OF ABOUT 5 FT OF YELLOW CLAY OVER 15 FT OF POORLY SORTED SCHIST, LIMESTONE, GRANITE AND SANDY CLAY GRAVELS. ; MAJOR.UNITS: LIMESTONE AND SUBORDINATE MICA- AND CHLORITIC SCHIST ; REG.COM: HIGH BENCH GRAVELS

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1899
Year of first production 1900
Year of last production 1936

Comments on the production information

  • 1900 PRODUCTION FROM DEXTER CR. PLUS TRIBS: $300,000; PRICE OF AU = $20.67/FINE OZ, REF. 1.

Comments on the workings information

  • MUCH WATER LOST TO UNDERGROUND FLOW.

Comments on development

  • DRIFT MINING IN EARLY YEARS; HYDRAULIC MINING AFTER COMPLETION OF MIOCENE DITCH IN 1903; DREDGE OPERATED: 1918-1926.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012934

Bibliographic references

  • Deposit

    BROOKS AND OTHERS, 1901, USGS SPEC. PUB., P. 69, 75-76.

  • Deposit

    USGS BULLETIN 263, P. 209.

  • Deposit

    USGS BULLETIN 328, P. 176-178.

  • Deposit

    USGS BULLETIN 533, P. 93-95, 109.

  • Deposit

    USGS BULLETIN 1374, P. 86.

  • Deposit

    USGS BULLETIN 739, P. 9.

  • Deposit

    USGS BULLETIN 773, P. 27.

  • Deposit

    USGS BULLETIN 783, P. 18.

  • Deposit

    USGS BULLETIN 792, P. 24.

  • Deposit

    USGS BULLETIN 797, P. 30.

  • Other Database

    BAG-MF-463-118

General comments

Subject category Comment text
Deposit GRADIENT: 128 FT/MI ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Deposit AU ON BLUE CLAY LAYER 5 FT BELOW SURFACE NEAR MOUTH OF CREEK; AU LIES ON BEDROCK AND IN BEDROCK CREVICES A FEW IN DEEP IN SCHIST, UP TO 20-30 FT DEEP WHERE BEDROCK IS LIMESTONE; STREAM GRAVELS: 3-10 FT DEEP; BENCH GRAVELS UP TO 30 FT DEEP; OLD CHANNEL 200 FT N OF CREEK ABOUT 1 MILE ABOVE MOUTH.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1987 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey