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  3. Mineral Resource Data System (MRDS)

Big Horn No. 1 and No. 2

Occurrence in Trinity county in California, United States with commodity Manganese
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10033671
MRDS ID M020300
Record type Site
Current site name Big Horn No. 1 and No. 2
Related records 10117771

Geographic coordinates

Geographic coordinates: -123.50194, 40.12707 (WGS84)
Relative position 0.3 MI. FROM A ROAD, 10 MI. FROM ALDER POINT, ON THE N. SIDE OF A STEEP SLOPE. NO. 2 IS NEAR NO. 1

Site location context

Political divisions (FIPS codes)

Trinity(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Alderpoint(quadrangle 1:24,000 scale)

Garberville(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Eel(hydrologic unit)

Northern California Coastal(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Trinity

Public Land Survey System information

Meridian Township Range Section Fraction State
Humboldt 004S 006E 09 California

Comments on the location information

  • NO. 1 IS LOCATED IN SE 1/4 SECTION 9

Commodities

Commodity Importance
Manganese Critical Tertiary

Materials information

Materials Type of material
Rhodochrosite Ore

Analytical data

Result ORE GRADE ESTIMATED LESS THAN 10 PERCENT MANGANESE, AT NO.

Nearby scientific data

(1) -123.50194, 40.12707
ListMap

Economic information

Ore body information

  • Width 0.3M

Comments on the geologic information

  • GEOL.DESC: NO. 1 ORE DEPOSIT, 1 FT. WIDE, EXPOSED FOR DISTANCE OF 5 FT. IN BEDROCK OF SHEARED CHERT. ORE CONSISTS OF MANGANIFEROUS CHERT AND RHODOCHROSITE. ALTITUDE IS 3000 FT. AT NO. 2 A 4 FT. THICK ORE BODY IS RELATIVELY LOW IN GRADE, AND RHODOCHROSITE IS THE PRIMARY MINERAL.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 152 1950 P. 306

  • Deposit

    D.O.M. BULL. 125 1943 P. 195

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1978 Killman, K.; 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.