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North Fork, Clearwater River

Producer in Clearwater county in Idaho, United States with commodities Gold, Platinum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10109545
MRDS ID M045487
Record type Site
Current site name North Fork, Clearwater River
Related records 10119669

Geographic coordinates

Geographic coordinates: -116.31462, 46.50266 (WGS84)
Elevation 335
Relative position 35 MI EAST OF LEWISTON. NORTH OF OROFINO

Site location context

Political divisions (FIPS codes)

Clearwater(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ahsahka(quadrangle 1:24,000 scale)

Potlatch(quadrangle 1:100,000 scale)

Pullman(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Clearwater(hydrologic unit)

Clearwater(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Idaho Clearwater

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 037N;038N 001E;002E Idaho

Comments on the location information

  • MUCH OF RIVER WAS PROSPECTED FROM DENT TO NEAR MOSCOW BAR. THIS AREA IS NOW INUNDATED BY DWORSHAK RESERVOIR LOCATION GIVEN IS THE MILE 15 MARKER SOUTH OF DENT SHOWN ON TOPO MAP. INFO FROM LAND.ST :01?

Commodities

Commodity Importance
Gold Primary
Platinum Critical Tertiary

Comments on the commodity information

  • GOLD IS SMALL BUT EQUIDIMENSIONAL, SOME SMALL NUGGETS

Materials information

Materials Type of material
Garnet Ore
Gold Ore
Ilmenite Ore
Magnetite Ore

Analytical data

Result PT=$2.40/TON (0.048 OZ/TON, 1.6 PPM), AU=$3.31/TON (0.096 OZ/TON, 3.3 PPM) IN CONCENTRATES, CONCENTRATION NOT KNOWN. GOLD IS ABOUT 860 FINE

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

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

Nearby scientific data

(1) -116.31462, 46.50266
ListMap

Economic information

Ore body information

  • General form STREAM SEDIMENT DEPOSITS

Controls for ore emplacement

  • Stream Hydraulics

Comments on the geologic information

  • BEDROCK OF COLUMBIA RIVER BASALT (ON THE WEST) UNDERLAIN BY SCHIST AND GNEISS. SOME SMALL ULTRAMAFIC BODIES ARE AROUND OROFINO, WHICH COULD PROVIDE A SOURCE OF PT

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Comments on the production information

  • 1,200 LB/DAY MINED IN 1905

Comments on the workings information

  • HAND OPERATIONS, HYDRAULICKING, DREDGING

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1975 Blair, Will N. U.S. Geological Survey
Updater 01-JAN-1990 Peterson, Jocelyn A. 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