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

Last Chance

Past Producer in Nevada county in California, United States with commodity Copper
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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. Mining district
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10031664
MRDS ID M010812
Record type Site
Current site name Last Chance
Alternate or previous names Mineral Hill Group

Geographic coordinates

Geographic coordinates: -121.25354, 39.15906 (WGS84)
Elevation 274
Relative position 2 1/2 MILES NORTH OF SPENCEVILLE

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Smartsville(quadrangle 1:24,000 scale)

Yuba City(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Bear(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 015N 006E 12,13 California

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase

Nearby scientific data

(1) -121.25354, 39.15906
ListMap

Economic information

Ore body information

  • General form LENTICULAR
    Strike N 26 W
    Dip E
    Thickness 2.44M

Economic information about the deposit and operations

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

Mining district

District name Spenceville

Ownership information

  • Type Operator
    Owner Charles Staples
    First year 1941

Comments on the production information

  • ORE WAS SHIPPED AS EARLY AS 1876 NO PRODUCTION VALUES AVAILABLE.

Comments on the workings information

  • SHAFT 240 FT. DEEP

Reference information

Bibliographic references

  • Deposit

    AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL. 50 ; CALIF. MIN. BUR., P. 196

  • Deposit

    MAC BOYLE, E., 1918 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY; 16 TH REPT. STATE MIN.; CALIF. MIN. BUR., P. 86

  • Deposit

    CALIF. JOUR. MINES & GEOLOGY, V. 37, NO. 3, JULY 1941, P. 456, AND PL. 3

General comments

Subject category Comment text
Deposit PYRITE OCCURS AS LENS-SHAPED BODIES
Deposit COMPRISED OF 24 ACRES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-NOV-1978 Fraticelli, L. A. (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.