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

Riley Placer Mine

Unknown in Trinity county in California, United States with commodity Gold
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10117154
MAS/MILS ID 0061051182
Record type Site
Current site name Riley Placer Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -123.80303, 40.70984 (WGS84)
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Humboldt(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mad River Buttes(quadrangle 1:24,000 scale)

Hayfork(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Mad-Redwood(hydrologic unit)

Northern California Coastal(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Trinity

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 033 N 008 W 17 SWSW California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

Ore Body (1) -123.80303, 40.70984
ListMap

Economic information

Economic information about the deposit and operations

Operation type Placer
Commodity type Metallic
Significant No

Ownership information

  • Type Owner-Operator
    Owner Lewiston Mining Co.
    Home office California
    Year 1991

Reference information

Bibliographic references

  • Deposit

    CALIF. DIV. MINES AND GEOL. ACTIVE MINES DATABASE (1991).

Reporter information

Type Date Name Affiliation Comment
Reporter 14-JAN-1997 Ridenour, James U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.