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  3. Mineral Resource Data System (MRDS)

Blake Brothers Quarry

Producer in Contra Costa county in California, United States with commodities Sand and Gravel, Construction, 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. Land status
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10114545
MAS/MILS ID 0060130117
Record type Site
Current site name Blake Brothers Quarry
Alternate or previous names Blake Brothers, San Pablo

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -122.40495, 37.9368 (WGS84)
Elevation 30
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Contra Costa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Quentin(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 Contra Costa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001 N 005 W 15 N2 California

Commodities

Commodity Importance
Sand and Gravel, Construction Tertiary
Stone, Crushed/Broken Primary

Nearby scientific data

Ore Body (1) -122.40495, 37.9368
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Non-metallic
Significant No

Land status

Ownership category Unknown

Ownership information

  • Type Owner-Operator
    Owner American Rock And Asphalt, Inc.
    Home office California
    Year 1990

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. V.47, NO.4, OCT. 1951PP.585-6; V.54, NO.4, OCT

  • Deposit

    PP.550-551,575, PL.5.

  • Deposit

    CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 103, 1990.

Reporter information

Type Date Name Affiliation Comment
Reporter 11-FEB-1991 Lowe, Nathan T. U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

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.