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Forbes Quarry

Occurrence in Marin county in California, United States with commodity Stone, Crushed/Broken
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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. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10030791
MRDS ID M009202
Record type Site
Current site name Forbes Quarry
Related records 10236200

Geographic coordinates

Geographic coordinates: -122.52939, 37.97518 (WGS84)
Relative position END OF QUARRY RD. SAN RAFAEL. PROBABLY THE QUARRY IS THAT SHOWN ABOUT A HALF MILE NORTH OF THE MILITARY ACADEMY ON USGS QUAD. SAN RAFAEL, CALIF., 1954.

Site location context

Political divisions (FIPS codes)

Marin(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Rafael(quadrangle 1:24,000 scale)

San Francisco(quadrangle 1:100,000 scale)

San Francisco(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 Marin

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002N 006W 33 California

Commodities

Commodity Importance
Stone, Crushed/Broken Primary

Nearby scientific data

(1) -122.52939, 37.97518
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Ownership information

  • Type Operator
    Owner Jensen And Pitts

Comments on the production information

  • WAS IN OPERATION AS EARLY AS 1893 AND PROBABLY MOST OF THE STONE OBTAINED FROM IT WAS QUARRIED PRIOR TO 1913. IT IS CURRENTLY USED FOR FILL MATERIAL.

Comments on the workings information

  • QUARRY - CURRENTLY THE CHERT IS REMOVED FROM THE UPPER BENCHES WITH A ROOTER AND IS HAULED AWAY IN TRUCKS.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 51, NO. 3, JULY 1955, P. 244, 286, PL.

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.