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Holseman Mine

Past Producer in Nevada 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. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10213126
MRDS ID M011192
MAS/MILS ID 0060570310
Record type Site
Current site name Holseman Mine
Related records 10031756

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -121.06604, 39.23549 (WGS84)
Elevation 777
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Grass Valley(quadrangle 1:24,000 scale)

Yuba City(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 016 N 008 E 22 SESENW California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

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

Nearby scientific data

Main Entrance (1) -121.06604, 39.23549
ListMap

Economic information

Ore body information

  • Strike N00S
    Dip 90N
    Thickness 7M
    Length 7M
    Width 7M
    Area 1HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 IRREGULAR
    Shape of Orebody #2 TABULAR
    Shape of Orebody #3 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONITIZATION
    Strike And Dip N00S:90N
    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
Deposit size Small
Significant No
Discovery year 1916
Year of first production 1916

Mining district

District name Grass Valley Area

Mineral rights holdings

Type of mineral rights Other

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Edna M Wasley
    Interest 100
    Home office California
    Year 1976
  • Type Operator
    Owner Last Operators-Tf Hogan,Gj Hothersall Et Al
    Home office California
    Year 1976
    Last year 1918

Comments on the production information

  • AT LEAST 1040 LONG TONS OF ORE WERE PRODUCED BY 1918. ORE AV 30-33 PER CENT CR2O3,MINE IDLE SINCE 1918 FUTURE OF MINING A LOCALITY NOT GOOD DUE TO PROXIMITY OF NEW HOUSING DEVELOPMEN E VISIT BY CDMG 5 JAN.1976 ORE RESERVE ESTIMATE FROM 701 INADEQUATE RESOURCES FOR COST ANALYSIS ANALYSIS BY CDMG IN 1976 GAVE FOLLOWING PERCENTAGES-DISSEMIN E=S102 10.20,CR2O3 34.71,FEO 14.94,TOTAL FE 22.51,AL203 11.3 2.44,CR/FE 1.36.

Reserves and resources

  • Type In-situ
    Estimate year 1918
    Inferred 100mt ore
    Total resources 200mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 32 wt-pct Chromium Trace 1918
    Iron Fe 7 wt-pct Iron Trace 1918

Workings at the site

  • Type of workings Surface
    Area 1HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .6
    Hardness of Ore M-HARD ROCKS
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Year of Information 1976
  • Type of workings Underground
    Length 14M
    Overall depth 7M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN STOPE
    Swell Factor .6
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING NO FLOW
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Number of Shafts 1
    1st Condition of Workings CAVED AT PORTAL
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Year of Information 1976

Reference information

Bibliographic references

  • Deposit

    RYNEARSON,CAL ST RIV MINES BULL 134,PT 3,CH 5, PP 243-244 1

  • Deposit

    LOGAN,CA 1918 UNPUBL FIELD REPORT,NEVADA CO.198

Reporter information

Type Date Name Affiliation Comment
Reporter 05-NOV-1984 Unknown 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.