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  3. Mineral Resource Data System (MRDS)

Last Chance

Past Producer in Madera 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 10035095
MRDS ID M022244
Record type Site
Current site name Last Chance
Related records 10139225

Geographic coordinates

Geographic coordinates: -119.64569, 37.23772 (WGS84)
Elevation 732
Relative position 3 MI. N WARD MTN.

Site location context

Political divisions (FIPS codes)

Madera(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

O'Neals(quadrangle 1:24,000 scale)

Shaver Lake(quadrangle 1:100,000 scale)

Mariposa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper San Joaquin(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Madera

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008S 021E 14 California

Comments on the location information

  • UTM EST. N 1/2 CENTER OF SEC.

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 > Granitoid > Syenite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -119.64569, 37.23772
ListMap

Economic information

Ore body information

  • Dip 60 NE
    Thickness 1.52M

Economic information about the deposit and operations

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

Comments on the workings information

  • UPPER & LOWER TUNNEL, EACH ABOUT 700 FT. IN LENGTH. 10 - STAMP MILL

Comments on development

  • ECON.COM: ORE CARRIES 2 % SULFIDES W/AVG. ASSAY VALUE OF $150/TON IN GOLD ( 1888 )

Reference information

Bibliographic references

  • Deposit

    IRELAND, W., JR., 1888 , REPORT OF THE STATE MINERALOGIST: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 8 , P. 211 - 212 .

  • Deposit

    CRAWFORD, J. J., 1894 , REPORT OF THE STATE MINERALOGIST: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 12 , P. 159 .

General comments

Subject category Comment text
Deposit VEIN, 1 - 5 FT. THICK. MAIN ORE SHOOT 250 FT. LONG.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1980 Nelson, Scott C. (Albers, John, P.) 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.