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Salmon River Area

Producer in Alaska, United States with commodities Gold, Platinum, Palladium, Chromium, Mercury, Iridium
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Geologic information

Identification information

Deposit ID 10107508
MRDS ID A010735
Record type Site
Current site name Salmon River Area
Alternate or previous names Platinum, Dowry, Clara, Foxgulch, Creeks, Salmon River

Geographic coordinates

Geographic coordinates: -161.70268, 58.92425 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • A PRODUCTIVE PLACER AREA OF APPROXIMATELY 16 SQ MI.; TRIBUTARIES OF SALMON RIVER NEAR GOODNEWS MINING CAMP; AREA OF INTEREST ALONG EFLANKS OF RED & THORSEN MOUNTAINS 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
Platinum Primary
Palladium Secondary
Chromium Secondary
Mercury Secondary
Iridium Secondary

Comments on the commodity information

  • ASSAY RANGES PRECIOUS METAL SAMPLES FREE OF IMPURITIES

Materials information

Materials Type of material
Chromite Ore
Cinnabar Ore
Gold Ore
Iridium Ore
Platinum Ore

Analytical data

Result 0.10%-2% AU, 50-88% PT, 6-40% IR, 0.14-0.40% PD
Result MINOR HG AMOUNTS

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel

Nearby scientific data

(1) -161.70268, 58.92425
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Controls for ore emplacement

  • Auriferous Gravels

Comments on the geologic information

  • MAJOR.UNITS: ULTRAMATIC ROCKS ; REG.COM: RED MOUNTAIN, HIGHLY PROBABLE SOURCE

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1926
Discovery method Ore-Mineral Not In Place
Year of first production 1934

Comments on the production information

  • 641000 OZS PLATINUM PRODUCED 1934-1975; ESTIMATED RESERVES ABOUT 500000 OUNCES PLATINUM

Workings at the site

  • Type of workings Surface
    Area 1335.51HA

Comments on the workings information

  • DREDGE WORKING AT PRESENT MOVING 7000 CUBIC YARDS DAILY, 1.12 MILLION CUBIC YARDS PER 160-DAY SEASON; DREDGE HAS 60 FOOT DIGGING DRAFT

Comments on development

  • WORKED ALMOST CONTINUOUSLY FROM 1934 TO PRESENT

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010735

Bibliographic references

  • Deposit

    USGS B1374, P. 49-50

  • Deposit

    USGS OFR 77-168-B P. 24

  • Deposit

    USGS OFR 77-168D, P.50

General comments

Subject category Comment text
Deposit PLATINUM CREEK MAJOR PRODUCER AT PRESENT
Deposit PRINCIPAL RESERVES REMAINING ARE CLAY-RICH PORTIONS OF TAILINGS FROM PAST LOW-GRADE PRODUCTION, AND DEEP GROUND IN LOWER SALMON RIVER DRAINAGE; EXPECTED ANNUAL PRODUCTION IS 10000 OUNCES PLATINUM FROM DREDGE ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1984 Garrison, Michael T. (Elliott, R. L.) U.S. Geological Survey