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Pacific Minerals Swift

Occurrence in El Dorado county in California, United States with commodity Talc-Soapstone
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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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10029684
MRDS ID M007383
Record type Site
Current site name Pacific Minerals Swift
Related records 10284002

Geographic coordinates

Geographic coordinates: -120.95463, 38.58934 (WGS84)
Relative position SE1/4 - 3 MI. NE OF LATROBE.

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Latrobe(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Cosumnes(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 009N 009E 35 California

Commodities

Commodity Importance
Talc-Soapstone Primary

Materials information

Materials Type of material
Soapstone Ore

Nearby scientific data

(1) -120.95463, 38.58934
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Ownership information

  • Type Operator
    Owner Pacific Minerals Co., Ltd.

Comments on the production information

  • WORKED ORIGINALLY PRIOR TO 1920; ACTIVE DURING EARLY 1920'S. WORKINGS CAVED AROUND 1924 AND MINE SHUT DOWN. REOPENED IN 1928 AND HAS BEEN OPERATED CONTINUOUSLY SINCE. MATERIAL IS USED IN INSECTICIDES.

Comments on the workings information

  • ORIGINALLY WORKED AS UNDERGROUND MINE; NOW AN OPEN PIT OPERATION. MAIN PIT 175 FT. LONG, 35-70 FT. WIDE, 75-FT. FACE AT NORTH END. ALSO 2 SMALLER PITS.

Reference information

Bibliographic references

  • Deposit

    CALIF.JOUR. MINES & GEOL.V. 52, NO. 4, PP. 456-7, 588, PL. 10

  • Deposit

    DIV. MINES MIN. INF. SVCE., V. 9, NO. 7, P. 6

  • Deposit

    U.S. BUREAU OF MINES MIN. YEARBOOK 1957, V. 3, P. 217

General comments

Subject category Comment text
Deposit UNTIL RECENTLY, THE OPERATION WAS SEASONAL, MARCH THROUGH SEPTEMBER, BUT NOW IS A YEAR -AROUND OPERATION. MAY BE THE MINE SHOWN NEAR SHRUB SIDING IN NW1/4SE1/4 OF THE SEC. ON USGS QUAD. LATROBE,CALIF.1950

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.