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  3. Mineral Resource Data System (MRDS)

Bonanza Claim

Past Producer in Del Norte county in California, United States with commodities Chromium, Iron
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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. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10211753
MRDS ID M007518
MAS/MILS ID 0060150089
Record type Site
Current site name Bonanza Claim

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -123.94676, 41.93202 (WGS84)
Elevation 887
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Del Norte(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

High Plateau Mountain(quadrangle 1:24,000 scale)

Happy Camp(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Smith(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)

Geographic areas

Country State County
United States California Del Norte

Public Land Survey System information

Meridian Township Range Section Fraction State
Humboldt 018 N 002 E 21 W2SESE California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Enstatite Unknown
Olivine Unknown
Serpentine Unknown

Nearby scientific data

Main Entrance (1) -123.94676, 41.93202
ListMap

Economic information

Ore body information

  • Strike N30E
    Dip 30N
    Thickness 2M
    Length 15M
    Width 3M
    Area 1HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 OTHER
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 DISSEMINATED
    Shape of Orebody #2 LENTICULAR
    Shape of Orebody #3 IRREGULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONITIZATION
    Strike And Dip N30E:30N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 1
    Date of Last Modification 830316

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1941
Year of first production 1942

Mining district

District name High Plateau Area

Mineral rights holdings

Type of mineral rights Other

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner U.S. Forest Service - Six Rivers National Forest
    Interest 100
    Home office California
    Year 1976

Comments on the production information

  • TOTAL PROD-137 LONG TONS AVG 50.5% CR2O3, 12.2% FE, CR/FE=2.8 RESERVE ESTIMATES IN LITERATURE-NO ORE IN PLACE WAS SEEN DURING VISIT-1975: INSUFFICIENT ORE RESERVE FOR COSTING

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .6
    Avg. Overburden Thickness 0
    Hardness of Ore M-HARD ROCKS
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Operating Days per Year 200
    Operating Shifts per Day 3
    Year of Information 1976
  • Type of workings Underground
    Length 15M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN STOPE
    Swell Factor .6
    Hardness of Rock HARDROCK FISSURED WITH EXCESSIVE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING NO FLOW
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Length of Inclines (m) 15
    Number of Inclines 1
    1st Condition of Workings FLOODED
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Year of Information 1976

Reference information

Bibliographic references

  • Deposit

    WELLS,FG ET AL,1946 CAL DIV MINES BULL 134,PT 1,CH.1 PP 37

  • Deposit

    OBRIEN,JC 1952 CAL JOUR MINES & GEOLOGY VOL 48 P 269.

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.

External references

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.