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  3. Mineral Resource Data System (MRDS)

Potosi

Past Producer in Shasta county in California, United States with commodity Gold
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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. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10077573
MRDS ID W025274
Record type Site
Current site name Potosi
Alternate or previous names Muletown Consolidated, Spring Gulch Mining Company
Related records 10237799

Geographic coordinates

Geographic coordinates: -122.52888, 40.53235 (WGS84)
Elevation 305
Relative position ABOUT 2 MILES N. OF IGO

Site location context

Political divisions (FIPS codes)

Shasta(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Igo(quadrangle 1:24,000 scale)

Redding(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Shasta

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 031N 006W 15,22 California

Comments on the location information

  • SECTIONS PROJECTED ; INFO FROM LAND.ST :UNDETERMINED

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • SULFIDE ZONE ENCOUNTERED AT DEPTH.

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -122.52888, 40.53235
ListMap

Economic information

Ore body information

  • General form PINCH AND SWELL
    Strike N
    Dip W
    Thickness 1.22M

Comments on the geologic information

  • GEOL.DESC: VEIN 15 IN. TO 4 FT. THICK, DIPPING STEEPLY WEST; VEIN IRON STAINED IN OXIDIZED ZONE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years INTERMITTANTLY FROM 1856 - 1933

Mining district

District name Igo

Comments on the workings information

  • 3 SHAFTS: SHAFT 90 FT. EXPOSED ORE SHOOT 100 FT. X 4 - 16 IN. OF HIGH-GRADE VALUE; SHAFT 75 FT. WITH DRIFTS 210 FT.; SHAFT 55 FT. WITH STOPES 380 FT.

Reference information

Bibliographic references

  • Deposit

    AVERILL C.V., 1933 , GOLD DEPOSITS OF THE REDDING AND WEAVERVILLE QUADRANGLES: CDM REPT. 29 , P. 44 - 45.

  • Deposit

    AVERILL, C.V., 1939 , MIN. RES. OF SHASTA COUNTY: CDM REPT. 35 , P. 149

  • Deposit

    BROWN, G.C., 1916 , SHASTA COUNTY: CMB REPT. 14 , P. 796 - 797

  • Deposit

    1) CRAWFORD, J.J., 1894 , TWELFTH REPT. OF THE STATE MINERALOGIST: CMB REPT. 12 , P. 254

  • Deposit

    2) LYDON, P.A. AND O'BRIEN, J.C., 1974 MINES AND MIN. RES. OF SHASTA COUNTY, CAL.: CDMG, COUNTY REPT. 6 , P. 49

  • Production

    LYDON, P.A. AND O'BRIEN, J.C., 1974

General comments

Subject category Comment text
Deposit NO OTHER INFORMATION FOUND.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1978 Tatkin, T.; Albers, John P. 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.