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Toyon Mine

Producer in Napa county in California, United States with commodity Mercury
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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. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10031660
MRDS ID M010805
Record type Site
Current site name Toyon Mine
Alternate or previous names Toyon Mine Granada Switzer, Granada Mine, Switzer Mine

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -122.50942, 38.67566 (WGS84)
Location accuracy 10(meters)
Relative position Prospect pit labeled on topo. [1800'S -1800'W - FRom NE CORner of SECtion]

Site location context

Political divisions (FIPS codes)

Napa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Detert Reservoir(quadrangle 1:24,000 scale)

Healdsburg(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Napa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 010N 006W 34 NE4 California

Commodities

Commodity Importance
Mercury Primary

Nearby scientific data

Main Entrance (1) -122.50942, 38.67566
ListMap

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Frank Adams

Comments on the production information

  • FIRST RECORDED PRODUCTION WAS 1933. SINCE THEN THE MINE HAS HAD A SMALL AND ERRATIC PRODUCTION. ABOUT 100 FLASKS.

Comments on the workings information

  • INCLINED SHAFT, 2 MAIN LEVELS, AND SEVERAL SUBLEVELS. - 2 SETS OF WORKINGS

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. V. 42, NO. 3, JULY 1946, P. 265

  • Deposit

    JOUR. V. 44, NO. 2, APRIL 1948, P. 182; JOUR. V. 35, NO. 4, OCT. 1939, P. 415

General comments

Subject category Comment text
Deposit VALLEY (LEDELL) HG MINE ALSO IN THIS SEC. - HAD SMALL PROD. - USBM IC 8252 P. 185 DMEA APPL'N 3698 - DR. H.M. SIMMONS - REPORTED 5/24/55 - BY PAMPEYA & WARNE - CONTRACT AWARDED - DMEA INDEX P. 22, P 5 OF COUNTY LIST USBM IC 8252 P 185.

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.

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.