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  3. Mineral Resource Data System (MRDS)

Twin Peaks Mine

Occurrence 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. Reporter information

Geologic information

Identification information

Deposit ID 10092391
MRDS ID M010793
Record type Site
Current site name Twin Peaks Mine

Geographic coordinates

Geographic coordinates: -122.53524, 38.6621 (WGS84)
Elevation 555
Relative position 350'S, 1500'E - NW COR OF SEC.

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 009N 006W 04 California

Commodities

Commodity Importance
Mercury Primary

Nearby scientific data

(1) -122.53524, 38.6621
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Louis D. Fay

Comments on the production information

  • SINCE ITS EARLY PRODUCING YEARS (1902 TO 1907, INCLUSIVE) THE MINE HAS HAD TWO PERIODS OF ACTIVITY, NAMELY DURING THE FIRST AND SECOND WORLD WARS. OVER 200 FLASKS.

Comments on the workings information

  • 4200 FEET OF ADITS, DRIFTS AND CROSSCUTS.

Reference information

Bibliographic references

  • Deposit

    USBM IC 8252 P. 185

  • Deposit

    CALIF. JOUR. V. 44, NO. 2, APRIL 1948, PP. 182-3

  • Deposit

    JOUR. V. 42, NO. 3, JULY 1946, PP. 267-8; JOUR. V. 35, NO. 4, OCT. 1939, P. 415

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.