Spanish Qtz.

Past Producer in Nevada county in California, United States with commodities Gold, Silver, Zinc, Lead, Copper
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. Land status
  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 10007642
MRDS ID C011917
Record type Site
Current site name Spanish Qtz.

Geographic coordinates

Geographic coordinates: -120.72547, 39.38072 (WGS84)
Elevation 975
Relative position 2 MI. S CHERRY HILL

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Graniteville(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)

Federal lands

Tahoe National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 018N 011E 30,19,31 California

Comments on the location information

  • UTM ACC. CENTER SEC. 30

Commodities

Commodity Importance
Gold Primary
Silver Primary
Zinc Critical Primary
Lead Primary
Copper Primary

Materials information

Materials Type of material
Gold Ore
Barite Gangue
Quartz Gangue

Analytical data

Result EST. ASSAYS .18 - .30 OZ. AU, 2 - 3 OZ AG, 0.6 % CU, 1.5 % PB, 2 % ZN.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone

Nearby scientific data

(1) -120.72547, 39.38072

Economic information

Ore body information

  • Strike N 10 - 15 W
    Dip 80 NE
    Thickness 27.43M
    Depth to top 0M

Comments on the geologic information

  • HOST ROCKS ARE BLEACHED & ALTERED. DIORITE CHLORITIZED

Economic information about the deposit and operations

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

Land status

Ownership category National Forest

Production statistics

  • Year 1938
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 52.14mt
    Major Ore Lead Lead 106.34mt
    Major Ore Silver Silver 1280400g
    Major Ore Gold Gold 128800g

Comments on the production information

  • AV. EST 50? - $1.25/TON WORKED FROM 1893 - 1899 AND FROM 1931 - 1944 . AG:AU = 10:1 , PB:CU:ZN = 2:1:1

Workings at the site

  • Type of workings Surface/Underground
    Length 3048M
    Overall depth 233.78M

Comments on the workings information

  • 2 TUNNELS, RAISES, OPEN CUTS, ADIT, DRIFTING CROSSCUTS

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. 428 - 429 .

  • Deposit

    MACBOYLE, E., 1918 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 249 .

  • Deposit

    LOGAN, C. A., 1930 , SACRAMENTO FIELD DIVISION: REPORT XXVI OF THE STATE MINERALOGIST; CALIFORNIA DIVISION OF MINES, VOL. 26 , NO. 2 , P. 128 - 129 .

  • Deposit

    GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 53 , NOS. 3 AND 4 , P. 584 .

  • Deposit

    5) SOUTHERN PACIFIC COMPANY, 1964 , MINERALS FOR INDUSTRY, NORTHERN CALIFORNIA, V. 2 , P. 41 .

  • Production

    MACBOYLE ( 1918 ) GOODWIN ( 1957 ) LOGAN ( 1941 )

General comments

Subject category Comment text
Deposit VEIN, 4 FT. THICK. 2 TYPES OF ORE: AU-PYRITE IN QTZ. AND HYDROTHERMALLY ALTERED HOST-ROCK GANGUE, AND AU ASSOC. W/SULFIDES IN QTZ.-BARITE GANGUE.
Deposit PATENTED 180 ACRES. INCLUDES AMERICAN, SPANISH, SANTA ANITA, SANTA ANITA EXT., PINE TREE, SINGLETON, GRIZZLY, SAVAGE & MEXICAN. ; 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.

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.