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

Black Bear

Past Producer in Trinity county in California, United States with commodity Chromium
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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. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10214592
MAS/MILS ID 0061050107
Record type Site
Current site name Black Bear
Alternate or previous names Dry Ridge

Geographic coordinates

Point of reference Trench
Geographic coordinates: -123.1661, 40.04065 (WGS84)
Elevation 1585
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Trinity(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Four Corners Rock(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

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Yolla Bolly-Middle Eel 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 025 N 012 W 11 SW California

Commodities

Commodity Importance
Chromium Critical Tertiary

Materials information

Materials Type of material
Chert Unknown
Mica Unknown
Psilomelane Unknown
Pyrolusite Unknown
Quartz Unknown

Nearby scientific data

Trench (1) Franciscan Complex, unit 1 (Coast Ranges)
ListMap

Economic information

Ore body information

  • Strike N00S
    Dip 40E
    Thickness 4.2M
    Length 54M
    Width 25M
    Depth to top 0M
    Field Value
    MAS Matrix # 1
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 SEDIMENTARY
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin RESIDUAL CONCENT
    Secondary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Strike And Dip N00S:40E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316
  • Area 2HA
    Field Value
    Total Surface Area (HA) 2
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1953

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Frank S. Brown,L. W. Brown,Alton Iliff,Ruth,Calif.
    Interest 100
    Home office California
    Year 1956
  • Type Operator
    Owner Raymond Pearson Of K. P. F. And F.
    Home office California
    Year 1956

Reference information

Bibliographic references

  • Deposit

    TRENGOVE,R.R.,1960,RECON. CALIF.MN. DEPOSITS;USBM R.I.5579,P

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Western Field Operations Center (WFOC) U.S. Bureau of Mines

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.