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May Day

Past Producer in Calaveras county in California, United States with commodity Gold
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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. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10102812
MRDS ID M006918
Record type Site
Current site name May Day
Related records 10211495

Geographic coordinates

Geographic coordinates: -120.48156, 38.13324 (WGS84)
Elevation 732
Relative position 1 MI W OF MURPHYS

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Murphys(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Stanislaus(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 003N 014E 06 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist

Nearby scientific data

(1) -120.48156, 38.13324
ListMap

Economic information

Ore body information

  • Strike W
    Dip 50 - 75 S
    Depth to top 0M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Comments on the production information

  • NO PRODUCTION RECORD FOUND. ACTIVE 1890'S, 1914 AND 1938 - 1939

Comments on the workings information

  • DEVELOPED BY 2000 FT CROSSCUT ADIT AND SHAFTS

Reference information

Bibliographic references

  • Deposit

    CLARK, W.B., LYDON, P.A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF.; COUNTY REPORT 2 ; CALIF. DIV. OF MINES AND GEOLOGY, P 166

  • Deposit

    TUCKER, W.B., 1916 , CALAVERAS COUNTY: CALIF. JOUR. MINES & GEOL., 14TH REPORT STATE MINERALOGIST, P. 92

General comments

Subject category Comment text
Deposit VEINS, FOUR PARALLEL VEINS, CROSSCUT OF WORKINGS CUTS ALL FOUR VEINS

Reporter information

Type Date Name Affiliation Comment
Editor 14-MAR-1994 Mosier, D.L. U.S. Geological Survey CORRECTED LAT.-LONG., DEPOSIT TYPE. ENTERED HOST ROCK TYPE.
Reporter 01-FEB-1979 Mateik, R.; Albers, J. 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.