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  3. Mineral Resource Data System (MRDS)

Fort Baker

Occurrence in Marin county in California, United States with commodities Manganese, 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. 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 10095097
MRDS ID M009194
Record type Site
Current site name Fort Baker
Related records 10115239

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -122.72126, 38.07294 (WGS84)
Relative position Original record had no coordinates, so this was plotted to the middle of the state/county area.

Site location context

Political divisions (FIPS codes)

Marin(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Geronimo(quadrangle 1:24,000 scale)

Napa(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Tomales-Drake Bays(hydrologic unit)

San Francisco Bay(hydrologic accounting unit)

San Francisco Bay(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Marin

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001S 006W 23,24 California

Commodities

Commodity Importance
Manganese Critical Primary
Gold Primary

Materials information

Materials Type of material
Psilomelane Ore

Nearby scientific data

Centroid (1) -122.72126, 38.07294
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: STRATIFIED DEPOSIT OF PSILOMELANE,18 INCHES THICK GRADES UP INTO LEAN ORE OF CHERT AND SHALE HIGHLY CHARGED WITH PSILOMELANE, AND 12 FEET THICK. ORE BODY IS NEAR INTRUSIVE CONTACT WITH ELLIPSOIDAL BASALTS.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Owner
    Owner U.S. Government

Comments on the workings information

  • UNDEVELOPED.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 51, NO. 3, JULY 1955, P. 280, 282

  • Deposit

    DOM BULL. 125, P. 131

  • Deposit

    BULL. 152, P. 105; ADD. REF.: USGS FOLIO 193, P. 23

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-73 Gere, W. U.S. Geological Survey
Updater 01-DEC-77 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.