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Seiad Creek/Emma Bell

Past Producer in Siskiyou 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. 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 10237846
MRDS ID W017822
MAS/MILS ID 0060930031
Record type Site
Current site name Seiad Creek/Emma Bell
Alternate or previous names Reddy No.2, No.14, Northern Klamath Mountains

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -123.14394, 41.91093 (WGS84)
Elevation 1067
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Kangaroo Mountain(quadrangle 1:24,000 scale)

Happy Camp(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Klamath(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Klamath 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 Siskiyou

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 047 N 011 W 20 NESWNE California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown
Olivine Unknown
Serpentine Unknown

Nearby scientific data

Main Entrance (1) -123.14394, 41.91093
ListMap

Economic information

Ore body information

  • Strike N45E
    Dip 40N
    Thickness 30M
    Length 3100M
    Width 100M
    Area 250HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 OTHER
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 DISSEMINATED
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control FRACTURING
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N45E:40N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 250
    Date of Last Modification 830316

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Significant Yes
Discovery year 1917
Mining method Strip-Hillside
Year of first production 1918
Milling method Gravity

Mining district

District name Hamburg

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Patented

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner U.S. Chrome
    Interest 50
    Home office California
    Year 1980
  • Type Owner
    Owner Asamera Minerals (U. S.), Inc.
    Interest 50
    Home office Nevada
    Year 1984

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Indicated 2991000mt ore
    Demonstrated 2991000mt ore
    Total resources 2991000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 0.05 wt-pct Chromium Major 1980
  • Type In-situ
    Estimate year 1980
    Indicated 555000mt ore
    Demonstrated 555000mt ore
    Total resources 555000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 1.3999 wt-pct Chromium Major 1980
  • Type In-situ
    Estimate year 1983
    Indicated 1000000mt ore
    Demonstrated 1000000mt ore
    Total resources 1000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 2.3 wt-pct Chromium Major 1983
  • Type In-situ
    Estimate year 1983
    Indicated 900000mt ore
    Demonstrated 900000mt ore
    Total resources 900000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 3.9 wt-pct Chromium Major 1983
  • Type In-situ
    Estimate year 1983
    Indicated 500000mt ore
    Demonstrated 500000mt ore
    Total resources 500000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 6.7 wt-pct Chromium Major 1983
  • Type In-situ
    Estimate year 1983
    Indicated 300000mt ore
    Demonstrated 300000mt ore
    Total resources 300000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 11.4 wt-pct Chromium Major 1983
  • Type In-situ
    Estimate year 1983
    Indicated 300000mt ore
    Demonstrated 300000mt ore
    Total resources 300000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 26.5 wt-pct Chromium Major 1983

Comments on the reserve resource information

  • M1C1=M2C1+M3C1+M4C1+M5C1+M6C1+M7C1 M1C1=TOTAL RESOURCE AT 0 PCT CUT OFF M1C2=M2C2+M3C2+M4C2+M5C2+M6C2+M7C2 M1C2=TOTAL RESOURCE AT 1 PCT CUT OFF M1C3=M2C5+M3C5+M4C5+M5C5+M6C3+M7C3 M1C3=TOTAL RESOURCE AT PCT CUT OFF- (3 PCT CUT OFF ON MAT 6-SEIAD CREEK) M1C4=M2C6+M3C6+M4C6+M5C6+M6C4+M7C3 M1C4=TOTAL RESOURCE AT 10 PCT CUT OFF M2C1=UPPER EMMA BELL @ 0 PCT CUT OFF M2C2=UPPER EMMA BELL @ 0 PCT CUT OFF 2C3=UPPER EMMA BELL @ 0 PCT CUT OFF M2C4=UPPER EMMA BELL @ 0 PCT CUT OFF M2C5=UPPER EMMA BELL @ 0 PCT CUT OFF M2C6=UPPER EMMA BELL @ 0 PCT CUT OFF M2C7=UPPER EMMA BELL @ 0 PCT CUT OFF M3C1=LOWER EMMA BELL @ 0 PCT CUT OFF M3C2=LOWER EMMA BELL @ 1 PCT CUT OFF M3C3=LOWER MMA BELL @ 2 PCT CUT OFF M3C4=LOWER EMMA BELL @ 3 PCT CUT OFF M3C5=LOWER EMMA BELL @ 5 PCT CUT OFF M3C6=LOWER EMMA BELL @ 10 PCT CUT OFF M3C7=LOWER EMMA BELL @ 20 PCT CUT OFF M4C1=UPPER LOWER EXT @ 0 PCT CUT OFF M4C2=UPPER LOWER EXT @ 1 PCT CUT OFF M4C3=UPPER LOWER EXT @ 2 PCT CUT OFF M4C4=UPPER LOWER EXT @ 3 PCT CUT OFF M4C5=UPPER LOWER EXT @ 5 PCT CUT OFF M4C6=UPPER LOWER EXT @ 10 PCT CUT OFF M4C7=UPPER LOWER EXT @ 20 PCT CUT OFF M5C1=EMMA BELL TAIL @ 0 PCT CUT OFF M5C2=EMMA BELL TAIL @ 1 PCT CUT OFF M5C3=EMMA BELL TAIL @ 2 PCT CUT OFF M5C4=EMMA BELL TAIL @ 3 PCT CUT OFF M5C5=EMMA BELL TAIL @ 5 PCT CUT OFF M5C6=EMMA BELL TAIL @ 20 PCT CUT OFF M6C1=SEIAD CREEK @ 0 PCT CUT OFF M6C2=SEIAD CREEK @ 1 PCT CUT OFF M6C3=SEIAD CREEK @ 3 PCT CUT OFF M6C4=SEIAD CREEK @ 5 PCT CUT OFF M6C5=SEIAD CREEK @ 20 PCT CUT OFF M7C1=MTN VIEW # 11 @ 0 PCT CUT OFF M7C2=MTN VIEW #11 @ 0 PCT CUT OFF M7C3=MTN VIEW #11 @ 5 PCT CUT OFF M7C4=MTN VIEW #11 @ 20 PCT CUT OFF

Workings at the site

  • Type of workings Underground
    Length 38103M
    Overall depth 277M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method CAVING METHODS
    Percent Waste Rock 15
    Percent Recovery 100
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    Length of Inclines (m) 3612
    Slope of Inclines 15
    Number of Inclines 1
    1st Condition of Workings OPEN
    Capacity 1000
    Capacity Units MT ORE/DAY
    Unit Production Cost 11.61
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 2
    Year of Information 1984

Reference information

Bibliographic references

  • Deposit

    LIPPEN, B.R., WETZEL, NICHOLAS, AND HEINRICH, SILVIA; THE

  • Deposit

    EMMA BELL DEPOSIT, SISKIYON COL, CALIF. A POSSIBLE

  • Deposit

    LOW-GRADE SOURCE OF CHROMITE. U.S.G.S. OPEN-FILE REPORT

  • Deposit

    83-816, 1983, 14PP.

  • Deposit

    DRAVO CORP., ANALYSIS OF LARGE SCALE NON-COAL UNDERGROUND

  • Deposit

    MINING METHODS, BUMINES OPEN FILE REPORT 36-74,

  • Deposit

    605PP.

  • Deposit

    GARY MINING AND MILLING COMPANY., PERSONAL COMMUNICATION.

  • Deposit

    OCT. 20, 1956.

  • Deposit

    INCLINE MINING AND MILLING COMPANY, PERSONAL COMMUNICATION.

  • Deposit

    NOV. 7,1596.

  • Deposit

    FRIZZEL,L., U.S. CHROME COMPANY, PERSONAL COMMUNICATION.

  • Deposit

    MAY 1979 THROUGH JUNE 1980.

  • Deposit

    HEWELL,D.F.,1942, PRELIMINARY REPORT ON MISCELLANEOUS

  • Deposit

    CHROMITE DEPOSITS: USGS IN-HOUSE REPORT.

  • Deposit

    O'BRIEN,J.C., REPORT NO. 212, AUGUST 19,1954.

  • Deposit

    O'BRIEN,J.C., SUPPLEMENT TO REPORT NO 212., JULY 13, 1955.

  • Deposit

    O'BRIEN,J.C., SUPPLEMENT TO REPORT NO 212., AUGUST 30, 1956.

  • Deposit

    RYNEARSON,G.A.,SMITH,C.T., 1941, CHROMITE DEPOSITS IN THE

  • Deposit

    SEIAD QUADRANGLE, SISKIYOU COUNTY CALIFORNIA, USGS

  • Deposit

    BULL. 922-D.

  • Deposit

    SALT LAKE CITY METALLURGY RESEARCH CENTER QUARTERLY REPORT,

  • Deposit

    FY 1979, SECOND QUARTER, P.18-21.

  • Deposit

    STINSON,M;,1975, DATA RECEIVED UNDER BUMINES CONTRACT NO.

  • Deposit

    G0254022.

  • Deposit

    STRAAM ENGINEERS,INC., CAPITAL AND OPERATING COST ESTIMATING

  • Deposit

    SYSTEM HANDBOOK, BUMINES CONTRACT NO. J0255026,1977.

  • Deposit

    STRICKLER,M., U.S. CHROME COMPANY, PERSONAL COMMUNICATION

  • Deposit

    WEIBELT,F.J.,AND RICHER,J.,1949, INVESTIGATION OF THE SEIAD

  • Deposit

    CREEK CHROMITE DEPOSITS, SISKIYOU COUNTY, CALIFORNIA,

  • Deposit

    US BUMINES RI 4619.

  • Deposit

    WELLS,F.G.,ET.AL., 1945., CHROMITE DEPOSITS NEAR SEIAD AND

  • Deposit

    MCGUFFY CREEKS, SISKIYOU COUNTY, CALIFORNIA; USGS BULL.

  • Deposit

    938-B, 62P.

  • Deposit

    WETZEL,N., THE SEIAD CREEK AND EMMA BELL CHROMITE DEPOSITS,

  • Deposit

    SISKIYOU COUNTY, CALIFORNIA. US BUMINES MAS DEPOSIT

  • Deposit

    REPORT, JUNE 1980.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-FEB-1995 Wetzel, Nicholas 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.