1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Evans Ii

Past Producer in Mariposa county in California, United States with commodity Gold
Map
XML
JSON
KML
C
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 10102903
MRDS ID M009771
Record type Site
Current site name Evans Ii
Related records 10260419

Geographic coordinates

Geographic coordinates: -119.85876, 37.49799 (WGS84)
Relative position 1 MI. NE MARIPOSA

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Stumpfield Mountain(quadrangle 1:24,000 scale)

Shaver Lake(quadrangle 1:100,000 scale)

Mariposa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fresno River(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 005S 0019 14 California

Comments on the location information

  • ADJ. GRIZZLEY GULCH

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Plutonic Rock

Nearby scientific data

(1) -119.85876, 37.49799
ListMap

Economic information

Ore body information

  • Strike NW
    Dip 25 E

Comments on the geologic information

  • GEOL.DESC: ONE VEIN STRIKES N. AND DIPS E IN GREENSTONE WALLS. A SECOND VEIN SYSTEM CONSISTING OF SEVERAL PARALLEL VEINS STRIKES NW & DIP 20 - 30 E. A THIRD WELL-DEFINED VEIN STRIKES NW AND DIPS 45 W, WALL ROCKS BRING SLATE AND DIKE ROCK.

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 RECORDS OF PRODUCTION FOUND.

Comments on the workings information

  • SOIL AND SOFTER PARTS OF THE VEINS NEAR THE SURFACE HAVE BEEN EXTENIVELY PLACERED. UNDERGROUND WORKINGS PROBABLY NOT EXTENSIVE. OLD WORKINGS ALMOST OBLITERATED.

Reference information

Bibliographic references

  • Deposit

    BOWEN, O. E., JR., & GRAY, H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIF.: CALIF. JOUR. MINES & GEOL., VOL. 53 , NOS. 1 & 2 , P. 259

General comments

Subject category Comment text
Deposit VEIN, POCKET

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-JAN-1979 Hayden, F. (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.