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  3. Mineral Resource Data System (MRDS)

Bellefontaine

Past Producer in Nevada 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. Mining district
  13. Production statistics
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10007523
MRDS ID C011476
Record type Site
Current site name Bellefontaine
Related records 10213207

Geographic coordinates

Geographic coordinates: -120.97131, 39.26767 (WGS84)
Elevation 823
Relative position 2 1/4 MI. E NEVADA CITY

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

North Bloomfield(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(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 016N 009E 09 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -120.97131, 39.26767
ListMap

Economic information

Ore body information

  • Strike E
    Dip 20 - 30 N
    Thickness 0.61M
    Depth to top 0M

Comments on the geologic information

  • ABOUT 1000 FT. W OF CONTACT W/ CALAVEVAS SLATE

Economic information about the deposit and operations

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

Mining district

District name Nevada City - Banner

Production statistics

  • Year 1915
    Period 1858 - 1915
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 96g/mt

Comments on the production information

  • MOST ORE MINED 1907 - 1916 RANGED $5 - $25/TON SOME TO $150/TON. ONE STREAK SULFIDES ASSAYED $252/TON

Workings at the site

  • Type of workings Underground
    Length 243.84M
    Overall depth 60.96M

Comments on the workings information

  • SEVERAL INCLINES, TUNNELS

Reference information

Bibliographic references

  • Deposit

    LOGAN, C. A., 1941 , MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37 , NO. 3 , PL. 3 P. 385 .

  • Deposit

    CRAWFORD, J. J., 1894 , REPORT OF THE STATE MINERALOGIST: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 12 , P. 185 - 186 .

  • Deposit

    MAC BOYLE, E., 1919 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 119 .

  • Production

    LOGAN, 1941

General comments

Subject category Comment text
Deposit VEIN, AVG. 1 FT. THICK
Deposit PATENTED 8.49 ACRES ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1979 Bowman, J. And 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.