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Boire Placer Mine

Producer in Calaveras 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. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10109181
MRDS ID M006817
Record type Site
Current site name Boire Placer Mine
Related records 10162933

Geographic coordinates

Geographic coordinates: -120.51323, 38.34491 (WGS84)
Relative position 1/4 MI. E OF RAILROAD FLAT; ON A BEND IN THE CHANNEL, SAID TO BE THE FORT MOUNTAIN CHANNEL. NE1/4

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rail Road Flat(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Calaveras(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 006N 013E 26 California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

(1) -120.51323, 38.34491
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: THE GRAVEL IS LOOSE; SAID TO AVERAGE $1.50 A CU. YD. THE GOLD IS VERY FINE AND IS ACCOMPANIED BY CONSIDERABLE BLACK SAND; SOME BOULDERS. BEDROCK IS SLATE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Comments on the production information

  • ACTIVE PRIOR TO 1900; 1500 YDS. GRAVEL WASHED IN 1900. OPERATED OFF AND ON SINCE APRIL 1932; 2 MEN EMPLOYED.

Comments on the workings information

  • 200' INCLINED SHAFT; DRIFT NORTHWARD UP THE TROUGH OF THE CHANNEL FOR ABOUT 400'.

Reference information

Bibliographic references

  • Deposit

    CALIF. V. 32, NO. 3, P. 327-8, 357 AND PL. 6

  • Deposit

    CALIF. COUNTY REPT. NO. 2, P. 190 AND PL. C

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. 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 California resources

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