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Sutro

Past Producer in Shasta county in California, United States with commodities Copper, Silver, 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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10077554
MRDS ID W025255
Record type Site
Current site name Sutro
Related records 10213396

Geographic coordinates

Geographic coordinates: -122.46443, 40.78124 (WGS84)
Elevation 686
Relative position 4 MILES NW. OF SHASTA DAM

Site location context

Political divisions (FIPS codes)

Shasta(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bohemotash Mountain(quadrangle 1:24,000 scale)

Redding(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sacramento Headwaters(hydrologic unit)

Upper Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Shasta-Trinity 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 Shasta

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 034N 005W 29,30 California

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Alteration

  • (Local) Pyritization

Analytical data

Result ORE CONTAINED FROM 2.5 - 11 % CU, 2.5 - 8.1 OZ/TON AG, AND .03 - .10 OZ/TON AU.

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -122.46443, 40.78124
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Faults - Not Seen At Surface, Poor Outcrops And No Lithologic Offsets In Uniform Upper Unit Of Balakalala Rhyolite Over Ore Body.

Ore body information

  • General form LENTICULAR

Controls for ore emplacement

  • Contact Between Upper And Middle Units Of The Balaklala Rhyolite.

Comments on the geologic information

  • GEOL.DESC: ORE BODY IN LIGHT-GREEN SILICEOUS RHYOLITE, UPPERMOST PART OF THE MIDDLE UNIT OF THE BALAKLALA RHYOLITE. ROCKS IN MINE AREA ARE CUT BY MANY MAFIC DIKES. LARGEST DIKE IS 25 FT. WIDE AND IS CONTINUOUS. THE ROCKS IN THE AREA ARE GENTLY DIPPING TO FLAT, BUT CONTAIN SEVERAL BROAD WARPS. THE MINE APPEARS TO BE ON THE SOUTH FLANK OF A LARGE WARP.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1913 - 1918 , 1923 - 1925

Mining district

District name West Shasta Copper - Zinc

Land status

Ownership category National Forest

Comments on the production information

  • 35,300 TONS - ORE CONTAINED 7.44 % CU, 6.40 OZ/TON AG, AND .08 OZ/TON AU.

Comments on the workings information

  • MINE WORKINGS ARE NOT ACCESSIBLE. 6 ADITS, ONE 2,000 FT. LONG WITH EXTENSIVE DRIFTING.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GOSSAN ON SURFACE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1978 Fraticelli, L. A. (Albers, J.) 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.