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  3. Mineral Resource Data System (MRDS)

High Grade and Teressa

Occurrence in Trinity county in California, United States with commodity 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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10034202
MRDS ID M020927
Record type Site
Current site name High Grade and Teressa
Related records 10288698

Geographic coordinates

Geographic coordinates: -123.23029, 41.07845 (WGS84)
Relative position 9 MILES NE. OF DENNY

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cecil Lake(quadrangle 1:24,000 scale)

Hoopa(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salmon(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Klamath National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Trinity Alps Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Trinity

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 036N 012W 05 California

Comments on the location information

  • UTM EST., SEC. PROJECTED

Commodities

Commodity Importance
Copper Tertiary

Materials information

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

Analytical data

Result OWNER CLAIMED ASSAYS
Result 11 - 14 % CU

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -123.23029, 41.07845
ListMap

Economic information

Ore body information

  • Strike N 25 E
    Dip 85 W

Controls for ore emplacement

  • Fractures

Comments on the geologic information

  • GEOL.DESC: LEDGE OF HARD, FINE-GRAINED GRAY DIORITE BETWEEN GREENSTONE FOOTWALL, AND SERPENTINE HANGING WALL, HAS BEEN REPLACED BY THE ORE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Land status

Ownership category National Forest

Comments on the workings information

  • DIAMOND DRILL HOLES FAILED TO FIND ENOUGH COPPER ORE TO ENCOURAGE DEVELOPMENT IN 1953 .

Reference information

Bibliographic references

  • Deposit

    O'BRIEN, J.C., 1965 : MINES AND MINERALS, TRINITY COUNTY, CA: COUNTY REPT. 4 : CALIF. DIV. MINES AND GEOLOGY, P. 21 , 61

General comments

Subject category Comment text
Deposit ANOTHER SIMILAR OUTCROP STRIKES N 25 E, DIPS 50 E AND IS 250 FT. WEST OF FIRST OUTCROP.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-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.

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.