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Rinconada

Past Producer in San Luis Obispo 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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Ownership information
  17. Production statistics
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10103825
MRDS ID M055788
Record type Site
Current site name Rinconada
Alternate or previous names Claus, San Jose Valley
Related records 10140571

Geographic coordinates

Geographic coordinates: -120.47764, 35.28941 (WGS84)
Elevation 533
Relative position 11 MI SE OF SANTA MARGARITA

Site location context

Political divisions (FIPS codes)

San Luis Obispo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Santa Margarita Lake(quadrangle 1:24,000 scale)

San Luis Obispo(quadrangle 1:100,000 scale)

San Luis Obispo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salinas(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 San Luis Obispo

Public Land Survey System information

Meridian Township Range Section Fraction State
030S 014E 21,27,28 California

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Metacinnabar Ore
Calcite Gangue
Dolomite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Silica Carbonate Alteration Of Serpentine

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -120.47764, 35.28941
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Local Faults

Ore body information

  • Length 152.4M

Controls for ore emplacement

  • Changes In Fault Attitudes

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1872
Production years 1902 - 1905, 1909 - 1911, 1923, 1925 - 1926, 1929 - 1932, 1934 - 1935, 1937, 1941 - 1943, 1951 - 1952

Mining district

District name Rinconada

Ownership information

  • Type Owner
    Owner George Bell, June Anderson, And Carrol Blake

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 190g/mt

Workings at the site

  • Type of workings Surface/Underground
    Length 2133.6M
    Overall depth 60.96M

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    BAILEY, E. H., USGS, PERSONAL FILES

  • Deposit

    ECKEL, E. B., YATES, R. G., AND GRANGER, A. E., 1940, QUICKSILVER DEPOSITS IN SAN LUIS OBISPO COUNTY AND SOUTHWESTERN MONTEREY COUNTY, CALIFORNIA: USGS BULL. 922-R, P. 515 - 580

  • Deposit

    RANSOME, A. L. AND KELLOGG, J. L., 1939, QUICKSILVER RESOURCES IN CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 35, P. 353 - 486

  • Deposit

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

  • Deposit

    6) FRANKE, H.A., 1935, MINES AND MINERAL RESOURCES OF SAN LUIS OBISPO COUNTY, CALIF.: CJMG, V. 31, P. 434-455

  • 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.

External references

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.