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  3. Mineral Resource Data System (MRDS)

Bear Ridge

Occurrence in Humboldt 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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Land status
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10030575
MRDS ID M008774
Record type Site
Current site name Bear Ridge
Related records 10139242

Geographic coordinates

Geographic coordinates: -123.55195, 40.34513 (WGS84)
Elevation 1524
Relative position ABOUT 3 MI. BY TRAIL FROM ROAD TO LASSIC LOOKOUT, AND 30 MI. FROM ALDER POINT.

Site location context

Political divisions (FIPS codes)

Humboldt(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Black Lassic(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)

Federal lands

Six Rivers National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Mount Lassic Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Humboldt 001S 005E 25 California

Comments on the location information

  • LOCATED IN SE 1/4 SECTION 25 , IS LISTED IN TRINITY COUNTY, BUT IF IN SECTION 25 , IT IS IN HUMBOLDT, UTM APPROX

Commodities

Commodity Importance
Manganese Critical Tertiary

Analytical data

Result PROBABLY LESS THAN 10 PERCENT MANGANESE

Nearby scientific data

(1) -123.55195, 40.34513
ListMap

Economic information

Ore body information

  • Strike E
    Dip VERTICAL
    Thickness 13.72M
    Length 67.06M

Comments on the geologic information

  • GEOL.DESC: MANGANIFEROUS CHERT BODY HIGH IN IRON CONTENT, IS 220 FT. LONG, AND 45 FT. MAXIMUM THICKNESS. STRIKE IS E. AND DIP IS VERTICAL. CHERT IS SURROUNDED BY SERPENTINE ON THE E, N, W AND PROBABLY THE S. CHERT HAS BEEN ALTERED NEAR SERPENTINE CONTACT, AND MAY HAVE INTRODUCED IRON AND MANGANESE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner George A. Kniss, Lee Murphy

Comments on the production information

  • NO PRODUCTION, LITTLE DEVELOPMENT. TONNAGE PROBABLY EXCEEDS 50,000 TONS, BUT GRADE IS LESS THAN 10 PERCENT PROBABLY.

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 152 1950 P. 304

  • Deposit

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

  • Deposit

    U.S.B.M. R.I. 5579 P. 14

General comments

Subject category Comment text
Deposit APPARENTLY INCORRECTLY SHOWN IN SEC. 32 - 15/6E IN P.S.F.C. REPORT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 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.