1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Patsy Bob Mine

Past Producer in Calaveras county in California, United States with commodities Gold, Lead, Copper
Map
XML
JSON
KML
B
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. Economic information about the deposit and operations
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10029016
MRDS ID M006341
Record type Site
Current site name Patsy Bob Mine
Alternate or previous names Rio Vista
Related records 10284727

Geographic coordinates

Geographic coordinates: -120.50572, 38.00074 (WGS84)
Relative position 5 MI SSE OF ANGELS CAMP

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Angels Camp(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Stanislaus(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Federal lands

USBR(Federal land areas administered by USBR)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002N 013E 25,26 California

Comments on the location information

  • UTM EST. NE 1/4 26 NW 1/4 25 ON WEST SLOPE OF STANISLAUS RIVER

Commodities

Commodity Importance
Gold Primary
Lead Tertiary
Copper Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Pyrite Ore
Quartz Gangue

Analytical data

Result ASSAYS OF ORE ZONE SAID TO AVERAGE $13.50/TON

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -120.50572, 38.00074
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ore Zone Of Faults And Veins - 240 Ft Thick.

Ore body information

  • General form PINCH & SWELL
    Thickness 0.61M

Comments on the geologic information

  • 1/2 IN TO 2 FT THICK VEINS, SMALL, PARALLEL, 6 - IN TO 8 - FT APART; TOTAL THICKNESS OF ZONE 240 FT. PORPHYRY DIKE INTRUSION ON FOOTWALL ACCOUNTS FOR ENRICHMENT. MINERALIZED ZONE IS FAIRLY WELL FAULTED. HANGING WALL SAID TO BE SLATE W SOME ANDELUSITE.

Economic information about the deposit and operations

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

Workings at the site

  • Type of workings Surface/Underground
    Area 16.188HA
    Overall length 137.16M

Comments on the workings information

  • 450 - FT LONG OPEN CUT, 100 FT ADIT. OTHER CAVED OPEN CUTS, SHAFTS, ADITS.

Reference information

Bibliographic references

  • Deposit

    CLARK, W. B., & LYDON, P. A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF.: CALIF. DIV. MINES & GEOL., COUNTY REPORT 2 , P. 173 & PL B

  • Deposit

    ERIC, J. H., STROMQUIST, A. A., & SWINNY, C. M., 1955 , GEOL. OF THE ANGELS CAMP AND SONORA QUADS., CALAVERAS & TUOLOMNE COS.: CALIF. DIV. MINES SPEC. REPORT, 41 , P. 50 & PL 4

  • Deposit

    LOGAN, C. A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS CO.: CDM CALIF. JOUR. MINES & GEOL., VOL. 32 , NO. 3 , P. 281 - 282 - 317

  • Production

    CLARK, 1962

General comments

Subject category Comment text
Deposit VEIN

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Hayden, F. (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.