1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Dowry Creek Platinum Placer

Past Producer in Alaska, United States with commodities PGE, Gold, Chromium
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10002302
MRDS ID A013208
Record type Site
Current site name Dowry Creek Platinum Placer
Related records 10258497

Geographic coordinates

Geographic coordinates: -161.70518, 58.94981 (WGS84)
Elevation 76
Relative position 2.0 MI NE OF GOODNEWS MINING CAMP

Site location context

Political divisions (FIPS codes)

Bethel(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hagemeister Island D-6(quadrangle 1:63,360 scale)

Hagemeister Strait(quadrangle 1:100,000 scale)

Hagemeister Island(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Kuskokwim Delta(hydrologic unit)

Lower Kuskokwim River(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-362, LOC. 11. LOCATION IS AT MOUTH OF DOWRY CREEK ON SALMON RIVER, ON ROAD. PLACER EXTENDS AT LEAST 0.6 MI UPSTREAM ON DISCOVERY CLAIM. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991). 1:250000 QUADRANGLE IS A 1957 VERSION.

Commodities

Commodity Importance
PGE Critical Primary
Gold Secondary
Chromium Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Ilmenite Gangue
Magnetite Gangue
Chromite Unknown

Analytical data

Result GRADE OF PGM (MEAN OF 5 ANALYSES, RECOMPUTED FREE OF IMPURITIES): 87.56% PT, 7.34% IR, 1.47% OS, 0.12% RU, 1.25% RH, 0.46% PD, 1.80% AU: USGS P 938, P. 26.

Host and associated rocks

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

Nearby scientific data

(1) JTros
ListMap

Economic information

Ore body information

  • Length 965.58M

Comments on the geologic information

  • MAJOR.UNITS: BEDROCK CONSISTS MAINLY OF ULTRA BASIC ROCKS OF THE GOODNEWS BAY ULTRAMAFIC COMPLEX (TERT-MES), AS WELL AS UPPER PALEOZOIC (?) SEDIMENTARY ROCKS DOWNSTREAM. ; REG.COM: SOURCE OF PLACER PROBABLY GOODNEWS BAY ULTRAMAFIC COMPLEX.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1928
Year of first production 1928
Year of last production 1941

Comments on the workings information

  • LITTLE INFORMATION AVAILABLE ON WORKINGS. PROBABLY USED SAME DRAGLINE EXCAVATOR THAT WAS USED ON CLARA CREEK. ABOUT 0.6 MI. OF TAILINGS VISIBLE ON TOPO MAP.

Comments on development

  • 1 CLAIM ESTABLISHED (DISCOVERY). CREEK MINED BY CLARA CREEK MINING CO. AFTER CLARA CREEK PLACER WAS MINED OUT. DOWRY CREEK WAS MINED OUT BY 1940 OR 1941.

Reference information

Bibliographic references

  • Deposit

    USGS MF-362, LOC. 11 (1972)

  • Deposit

    USGS OF 80-909, P. 17 (1980)

  • Deposit

    USGS P 938, P. 4, 5, 23, 26 (1976)

  • Deposit

    USGS B 918, P. 53 (1940)

  • Deposit

    USBM OFR 51-86, P. 2, 6, 7 (1986)

  • Other Database

    BAG-MF-362-11

General comments

Subject category Comment text
Deposit LITTLE INFORMATION AVAILABLE. PRESUMABLY MODERN STREAM AND GLACIOFLUVIAL GRAVELS, COBBLES, BOULDERS. PAYSTREAK PROBABLY 0.6 MI. LONG, JUDGING FROM TAILINGS.
Deposit STREAM GRADIENT 400-500 FT/MI. LITTLE INFORMATION AVAILABLE ON THIS DEPOSIT. TRIBUTARY OF SALMON RIVER. ; 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.

Reporter information

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