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Tunnel Rock

Occurrence in Contra Costa 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 10029585
MRDS ID M007230
Record type Site
Current site name Tunnel Rock
Related records 10114733

Geographic coordinates

Geographic coordinates: -122.19994, 37.85962 (WGS84)
Relative position SW1/4. IN BERKELEY HILLS, 3/4 MI. E OF BROADWAY TUNNEL.

Site location context

Political divisions (FIPS codes)

Contra Costa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Oakland East(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 001S 003W 09 California

Commodities

Commodity Importance
Stone, Crushed/Broken Primary

Nearby scientific data

(1) Miocene marine rocks
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Ownership information

  • Type Operator
    Owner Goerig, A. C.

Comments on the production information

  • WORK STARTED IN 1951 ON CONTRACTUAL BASIS; OWNER-OPERATED SINCE 1952 - REPORTED CAPACITY IN 1958 TO BE 150 TONS PER DAY, PRODUCING RIPRAP UP TO 10 TON STONE; CRUSHER RUN BASE, AND DRAIN ROCK.

Comments on the workings information

  • PIT 150 FT. LONG BY 100 FT. WIDE BY 12 FT. HIGH.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 54, NO. 4, OCT. 1958, PP. 552-3, 578, PL.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 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.