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Maltby No. 2 Mine Blanco and Snowflake

Occurrence in Napa county in California, United States with commodity Magnesite
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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 10031612
MRDS ID M010704
Record type Site
Current site name Maltby No. 2 Mine Blanco and Snowflake

Geographic coordinates

Geographic coordinates: -122.31273, 38.5135 (WGS84)

Site location context

Political divisions (FIPS codes)

Napa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chiles Valley(quadrangle 1:24,000 scale)

Healdsburg(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Pablo Bay(hydrologic unit)

San Francisco Bay(hydrologic accounting unit)

San Francisco Bay(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Napa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008N 004W 28 California

Commodities

Commodity Importance
Magnesite Primary

Materials information

Materials Type of material
Magnesite Ore

Nearby scientific data

(1) -122.31273, 38.5135
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Tulare Mining Co.

Comments on the production information

  • AMONG THE FIRST MAGNESITE MINES TO BE WORKED IN CALIFORNIA. SHIPMENTS BEGAN IN 1891 AND CONTINUED FOR 10 YEARS AT A RATE OF OVER 1000 TONS PER YEAR. IDLE IN 1925.

Comments on the workings information

  • ADIT, TUNNEL, DRIFT

Reference information

Bibliographic references

  • Deposit

    CALIF. BULL. 79, 1925, PP. 54-56

  • Deposit

    REPT. 25, 1929, P. 218

  • Deposit

    USGS BULL. 355, 1908, PP. 29-31

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 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.