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Tiburon Ridge Flagstone

Occurrence in Marin county in California, United States with commodities Stone, Stone, Dimension
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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 10030789
MRDS ID M009196
Record type Site
Current site name Tiburon Ridge Flagstone
Related records 10139174

Geographic coordinates

Geographic coordinates: -122.49272, 37.90323 (WGS84)
Relative position 1 MI. W. OF CALIFORNIA POINT. ON W. SLOPE OF TIBURON RIDGE; DEPOSIT LIES ABOUT 1/4 MILE NW OF THE SUMMIT ABOVE CALIFORNIA POINT AND IS WITHIN 100 YDS. OF THE PAVED ROAD FROM THE SAN FRANCISCO BAY SHORE TO THE SUMMIT OF THE RIDGE. THIS MATERIAL HAS ALSO BEEN QUARRIED AT A LOWER ELEVATION ABOUT 300 YDS TO THE NW OF THIS LOCALITY. THE MINERAL LAWSONITE WAS DISCOVERED IN THIS AREA.

Site location context

Political divisions (FIPS codes)

Marin(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 Marin

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001N 006W 26 California

Commodities

Commodity Importance
Stone Primary
Stone, Dimension Primary

Nearby scientific data

(1) -122.49272, 37.90323
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Ownership information

  • Type Owner
    Owner Thomas B. Deffeback

Comments on the production information

  • ABOUT 1952 SAMUEL NEWSOM QUARRIED A FEW HUNDRED TONS OF FLAGSTONE FROM THIS DEPOSIT.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 51, NO. 3, JULY 1955, P. 251, 289, 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.