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  3. Mineral Resource Data System (MRDS)

Los Prietos

Past Producer in Santa Barbara county in California, United States with commodity Mercury
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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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10040880
MRDS ID M055759
Record type Site
Current site name Los Prietos
Alternate or previous names Juniper, Snow

Geographic coordinates

Geographic coordinates: -119.68927, 34.53361 (WGS84)
Relative position 8 MI N OF SANTA BARBARA

Site location context

Political divisions (FIPS codes)

Santa Barbara(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Little Pine Mountain(quadrangle 1:24,000 scale)

Cuyama(quadrangle 1:100,000 scale)

Los Angeles(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Santa Ynez(hydrologic unit)

Central California Coastal(hydrologic accounting unit)

Central California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Los Padres 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 Santa Barbara

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 005N 027W 09,10,11 California

Comments on the location information

  • LOCATED ON MINE SYMBOL

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Franciscan Complex
    Rock description Franciscan Complex
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -119.68927, 34.53361
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Sandstone - Serpentine Contact

Ore body information

  • Strike N 50 W
    Dip 60 N
    Thickness 21.34M

Controls for ore emplacement

  • Faults

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1860
Production years 1911, 1913 - 1916, 1930 - 1932, 1935 - 1939

Mining district

District name Los Prietos

Ownership information

  • Type Owner
    Owner Gibraltar Mining Co.

Production statistics

  • Year 1962
    Period To 1962
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^2-10 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 2711g/mt

Reference information

Bibliographic references

  • Deposit

    HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252

  • Deposit

    TUCKER, W. B., 1925, MINING IN CALIFORNIA, SANTA BARBARA COUNTY: REPT. OF THE STATE MINERALOGIST, V. 21, P. 542 - 544

  • Deposit

    BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.

  • Deposit

    RANSOME, A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-486

  • Production

    USBM DATA

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Peterson, Jocelyn A. 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.