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Mcguffy Creek Deposit

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. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10286524
MRDS ID W025615
MAS/MILS ID 0060930032
Record type Site
Current site name Mcguffy Creek Deposit
Alternate or previous names Lady Gray, Veta Grande, Veta Chica, Grand Falls, Grand Canyon, Cherro Colorado, Mary Lou
Related records 10111131

Geographic coordinates

Point of reference Trench
Geographic coordinates: -123.04283, 41.71593 (WGS84)
Elevation 1189
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

Scott Bar(quadrangle 1:24,000 scale)

Happy Camp(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Scott(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 045 N 010 W 30 SW California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown
Olivine Unknown
Serpentine Unknown

Nearby scientific data

Trench (1) -123.04283, 41.71593
ListMap

Economic information

Ore body information

  • Strike N20W
    Dip 20N
    Thickness 100M
    Length 2000M
    Width 400M
    Area 50HA
    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 N20W:20N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 50
    Date of Last Modification 830316

Comments on the geologic information

  • LADY GRAY-STRIKE N 10-30 W DIP 65-75 SW PLUNGE 22 NW STRIKE 150M WIDTH 105M DEPTH 70M GRADE 5.15 PERCENT VETA CHICA-STRIKE N 10-25 W DIP 55-75 SW PLUNGE 15 NW STRIKE 175M WIDTH 30M DEPTH 30M GRAND FALLS-GRAND CANYON-STRIKE N 30 N DIP 70 SW PLUNGE 15- 22 NW. STRIKE-300M WIDTH 25M DEPTH 61M VETA GRANDE-STRIKE N 30-35 W DIP 65 SW PLUNGE 15-25 NW STRIKE 137, WIDTH 20M DEPTH 61M CERRO COLORADO-STRIKE N 5-10 W DIP 75 SW PLUNGE 15 NW STRIKE 305 M WIDTH 40M DEPTH 30M

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Significant Yes
Discovery year 1917
Mining method Open Pit
Year of first production 1942

Mining district

District name Scotts Bar

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Asamera Minerals (U. S.), Inc.
    Interest 100
    Home office Nevada
    Year 1984

Reserves and resources

  • Type In-situ
    Estimate year 1949
    Indicated 23000mt ore
    Demonstrated 23000mt ore
    Total resources 23000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 18 wt-pct Chromium Major 1949

Comments on the reserve resource information

  • MCGUFFY CREEK AREA INCLUDES HAMBURG GROUP, LADD MINE. FAIRVIEW MINE, AND MCGUFFY DEPOSITS NOS 19-27. DEPOSIT REPORT COMPLETED.
  • MATRIX 1 IS NON CUMMULATIVE M1C1 REPRESENTS THE TOTAL DEMONSTRATED AND IDENTIFIED RESOURCE AT THE MCGUFFY CREEK AREA. MATRIX 1 COL 2 IS VETA CHIA DEPOSIT MATRIX COL 3 IS CERRO COLORADO DEPOSIT MATRIX 1 COL 4 IS VETA GRANDE DEPOSIT MATRIX 1 COL 5 IS GRAND FALLS DEPOSIT MATRIX 1 COL 6 IS LAY GRAY DEPOSIT

Workings at the site

  • Type of workings Surface
    Area 50HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Percent Waste Rock 69.9
    Avg. Overburden Thickness 0
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 12
    Max. Pit Slope (degrees) 45
    Capacity 250
    Capacity Units MT ORE/DAY
    Unit Production Cost 11.34
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 1
    Year of Information 1984

Reference information

Bibliographic references

  • Deposit

    AIME SME MINING ENG HANDBOOK,V1,1973,PP 12-140 THROUGH

  • Deposit

    12-147

  • Deposit

    DRAVO.CORP.,1974,ANALYSIS OF LARGE SCALE NON-COAL UND.MIN.

  • Deposit

    METHODS BUMINES OPEN FILE REPORT 36-74,605 PP.

  • Deposit

    HEWELL,D.F.,1942,PRELIMINARY REPORT ON MISC. CHROMITE

  • Deposit

    DEPOSITS:USGS IN-HOUSE REPORT.

  • Deposit

    KLEIN,C.W.,1975, THE GEOLOGY OF THE HAPPY CAMP AREA,SISKIYOU

  • Deposit

    COUNTY,CALIF. PHD DIS. UNPUB.

  • Deposit

    O'BRIEN,J.C., REPORT NO.212, AUG.19,1954,SUPPLEMENT,JULY 13,

  • Deposit

    1955,SUPPLEMENT, AUGUST 30,1956.

  • Deposit

    RYNEARSON,G.A.& SMITH,C.T.,1940, CHROMITE DEPOSITS IN THE

  • Deposit

    SEIAD QUAD,SISKIYOU,COUNTY,CALIF, USGS BULL. 922-D.

  • Deposit

    SALT LAKE CITY METALLURGY RC QUARTERLY REPORT. FY 1979, 2ND

  • Deposit

    QUARTER, PP 18-21.

  • Deposit

    STINSON,M.,1975, DATA RECEIVED UNDER BUREAU CONTRACT NO.

  • Deposit

    G0254022.

  • Deposit

    STRAAM ENG.INC.,1977,CAPITAL AND OPERATING COST ESTIMATING

  • Deposit

    SYSTEM HANDBOOK, BUMINES CONTRACT NO.J0255026.

  • Deposit

    SUDWORTH,G.B.,1967, FOREST TRESS OF THE PACIFIC SLOPE:NEW

  • Deposit

    YORK,DOVER PUB.,INC,455PP.

  • Deposit

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

  • Deposit

    MCGUFFY CREEK CHROMITE DEPOSITS, SISKIYOU COUNTY,

  • Deposit

    BUMINES, RI, 4576.

  • Deposit

    WELLS, F.G., ET AL., 1949, CHROMITE DEPOSITS NEAR SEIADAND

  • Deposit

    MCGUFFY CREEKS, SISKIYOU COUNTY, CALIF., USGS BULL 948-B.

  • Deposit

    62 PP.

  • Deposit

    WETZEL, N. AND RANEY, R., MCGUFFY CREEK CHROMITE DEPOSITS,

  • Deposit

    SISKIYOU COUNTY, CALIFORNIA, BUMINES MAS DEPOSIT REPORT

  • Deposit

    JULY, 1980, UNPUB.

General comments

Subject category Comment text
Deposit MCGUFFY CREEK AREA INCLUDES HAMBURG GROUP,LADD MINE,FAIRVIEW AND MCGUFFY DEPOSITS NOS 19-27 COST- EXP.50M: EQP.175M: WORK CAP25M: ACQ.& DEV. 0: LEAD TM MILL COST- WK.CAP.117M; EQIP 768M

Reporter information

Type Date Name Affiliation Comment
Reporter 03-MAR-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.