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Shaw and Mathews

Producer in Mendocino county in California, United States with commodity Manganese
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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. Reporter information

Geologic information

Identification information

Deposit ID 10031304
MRDS ID M009983
Record type Site
Current site name Shaw and Mathews
Related records 10285676

Geographic coordinates

Geographic coordinates: -123.08469, 38.84682 (WGS84)
Relative position 2 MI. BY TRAIL AND 3 MI. BY ROAD FROM CLOVERDALE ON THE NORTHWESTERN PACIFIC RAILROAD.

Site location context

Political divisions (FIPS codes)

Mendocino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cloverdale(quadrangle 1:24,000 scale)

Point Arena(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Russian(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 Mendocino

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 012N 011W 33 California

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Psilomelane Ore

Analytical data

Result ORE GRADE 20 TO 45 PERCENT MANGANESE

Nearby scientific data

(1) -123.08469, 38.84682
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: SMALL LEASES AND PATCHES OF SILICEOUS ENCLOSED IN BODIES OF MASSIVE RED TO GRAY CHERT, WHICH IS ENCLOSED IN RED RADIOLARIAN CHERTS AND SHALES THAT ARE CONTORTED AND CUT BY SMALL FAULTS. ORE IS BLACK OXIDE ORE AND PSILOMELANE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Operator
    Owner Edward W. And Mabel B. Lebaron

Comments on the production information

  • TWO CARLOADS OF ORE AVERAGING 47% MANGANESE AND 12% SILICA MINED FROM CUTS IN 1918. IDLE. SOME ORE REMAINS ON DUMPS; BEST ORE SEEN WAS A SMALL AMOUNT OF PSILOMELANE CONTAINING ABOUT 40 TO 45% MANGANESE.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOLOGY, V. 49, NO. 4, OCT. 1953, P. 390

  • Deposit

    D.O.M. BULL. 152, P. 137

  • Deposit

    BULL. 125, P. 140

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-DEC-1977 Killman, K.; Albers, J. 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.