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

Occurrence

Past Producer in Trinity county in California, United States with commodities Gold, Silver, Copper
Map
XML
JSON
KML
C
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. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  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 10035893
MRDS ID M023841
Record type Site
Current site name Occurrence

Geographic coordinates

Geographic coordinates: -122.79083, 40.78013 (WGS84)
Elevation 762
Relative position 1 MI. ESE PETTIJOHN MTN. ON W. SLOPE FERRY GULCH

Site location context

Political divisions (FIPS codes)

Trinity(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Trinity Dam(quadrangle 1:24,000 scale)

Redding(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Trinity(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(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 Trinity

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 034N 008W 29 California

Comments on the location information

  • UTM EST. NE 1/4 LAND STATUS VALUE CALCULATED 7-94 USING GIS OVERLAY ANALYSIS WITH USFS LAND OWNERSHIP BOUNDARIES, 1:126,720 SCALE.

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Tertiary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Alteration

  • (Local) Pyritization

Analytical data

Result SELECTED SAMPLES ASSAYED A TRACE AU, 0.2 OZ. AG AND 0.06% CU

Host and associated rocks

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

Nearby scientific data

(1) -122.79083, 40.78013
ListMap

Economic information

Ore body information

  • Thickness 3.05M

Economic information about the deposit and operations

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

Land status

Ownership category National Forest

Reference information

Bibliographic references

  • Deposit

    SOUTHERN PACIFIC COMPANY, 1964, MINERALS FOR INDUSTRY, NORTHERN CALIFORNIA, V. 2, P. 156

General comments

Subject category Comment text
Deposit SILICIFIED AND PYRITIZED ZONE 8-10 FT. WIDE AND 200 FT. LONG PYRITE OCCURS AS SPARCE DISSEMINATIONS AND RARELY IN MASSIVE PRODS.
Deposit SHOWS LITTLE PROMISE ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1980 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.

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.