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La Trinidad

Past Producer in Placer county in California, United States with commodities Gold, Silver, Antimony, Arsenic, Copper
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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. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10086489
MRDS ID X024488
Record type Site
Current site name La Trinidad
Alternate or previous names Sterrett
Related records 10164154

Geographic coordinates

Geographic coordinates: -120.49574, 39.20156 (WGS84)
Elevation 1829
Relative position 8 MI. S CISCO 3 1/2 MI. SSW SHOW MT.

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Royal Gorge(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe 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 Placer

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 016N;015 013E;013 34;02 California

Comments on the location information

  • UTM ACC. S 1/2 , SE 1/4 .

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Antimony Critical Secondary
Arsenic Critical Secondary
Copper Secondary

Materials information

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

Analytical data

Result EST. ORE ASSAYS $3.45/TON.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -120.49574, 39.20156
ListMap

Economic information

Ore body information

  • Strike NW
    Dip 45 NE
    Thickness 2.44M

Economic information about the deposit and operations

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

Mining district

District name Canada Hill

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Underground
    Length 518.16M

Comments on the workings information

  • ADIT, TUNNEL, DRIFT WITH RAISE.

Reference information

Bibliographic references

  • Deposit

    LOGAN, C. A., 1936 , GOLD MINES OF PLACER COUNTY, CALIFORNIA; CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 32 , NO. 1 , P. 27 .

  • Deposit

    WARING, CLARENCE A., 1917 , PLACER COUNTY: REPORT 15 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 343 .

  • Production

    LOGAN ( 1936 ).

General comments

Subject category Comment text
Deposit PATENTED ; INFO.SRC : 1 PUB LIT
Deposit VEIN, 2 - 8 FT. THICK, WITH OXIDIZED SULFIDES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 Nelson, Scott C. (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.