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  3. Mineral Resource Data System (MRDS)

Ben Franklin

Past Producer in Nevada county in California, United States with commodities Gold, Lead
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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 10007239
MRDS ID C010904
Record type Site
Current site name Ben Franklin

Geographic coordinates

Geographic coordinates: -121.0427, 39.181 (WGS84)
Elevation 792
Relative position 2 MI. SSE GRASS VALLEY

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Grass Valley(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 008E 01,02 California

Commodities

Commodity Importance
Gold Primary
Lead Secondary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -121.0427, 39.181
ListMap

Economic information

Ore body information

  • Strike N
    Dip 45 E
    Thickness 1.22M
    Depth to top 0M

Comments on the geologic information

  • ALASKA VEIN IN GRANODIORITE 700 FT. W OF BEN FRANKLIN VEIN WHICH FOLLOWS GRANODIORITE - DIABASE CONTACT

Economic information about the deposit and operations

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

Mining district

District name Grass Valley

Production statistics

  • Year 1869
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 55g/mt
  • Year 1872
    Accuracy Estimate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 66g/mt
  • Year 1893
    Accuracy Estimate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 45g/mt
  • Year 1909
    Accuracy Estimate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 22g/mt
  • Year 1917
    Period 1912 - 1917
    Accuracy Estimate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 25g/mt

Comments on the production information

  • TOTAL PRODUCTION SAID TO BE $750,000

Workings at the site

  • Type of workings Underground
    Overall depth 152.4M

Comments on the workings information

  • TUNNELS, SHAFTS, STOPES

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 - 386 .

  • Deposit

    MACBOYLE, E., 1919 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 120 .

  • Production

    MCBOYLE, 1919 ; LOGAN, 1941

General comments

Subject category Comment text
Deposit VEINS, 2 , ALASKA & BEN FRANKLIN 1 - 4 FT. THICK
Deposit PATENTED 30 ACRES CLAIMS INCLUDE ST. STEPHEN, CLEVELAND, WILCOX, AVONDALE, ALASKA & OTHERS ; 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 PARSED HOST ROCK AND ASSOCIATED ROCK INFORMATION FROM OLD SINGLE VALUED FIELD TO NEW MULTIVALUED FIELD
Editor 27-APR-1995 Mosier, Dan 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.