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Black Canyon

Past Producer in Inyo county in California, United States with commodities Copper, Gold, Lead, Silver
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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. Land status
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10163247
MRDS ID W023764
MAS/MILS ID 0060270156
Record type Site
Current site name Black Canyon
Alternate or previous names Mineral Point, Sanger, Carol J, Flora, Eagle and Westward Eagle, Hope Group, Black Canyon Rare Ii Area
Related records 10076632

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -118.20423, 37.33325 (WGS84)
Elevation 2547
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Inyo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Westgard Pass(quadrangle 1:24,000 scale)

Bishop(quadrangle 1:100,000 scale)

Mariposa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Crowley Lake(hydrologic unit)

Mono-Owens Lakes(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Federal lands

Inyo 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 Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 007 S 034 E 13 SWSWSW California

Commodities

Commodity Importance
Copper Tertiary
Gold Tertiary
Lead Primary
Silver Tertiary

Materials information

Materials Type of material
Argentite Unknown
Galena Unknown
Gold Unknown
Sphalerite Unknown
Argentite Unknown

Nearby scientific data

Main Entrance (1) -118.20423, 37.33325
ListMap

Economic information

Ore body information

  • Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 FISSURE VEIN
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Date of Last Modification 840726
  • Field Value
    MAS Matrix # 2
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 MASSIVE
    Type of Orebody #2 SHEAR ZONE
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control UNKNOWN
    Date of Last Modification 840726

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category National Forest

Comments on the reserve resource information

  • MATRIX 1 COLUMN 1 CONTAINS THE INDICATED AND INFERRED TONNAGES FROM THE CAROL J MINE MATRIX 2 COLUMN 1 CONTAINS THE INDICATED TONNAGE FOR THE HOPE MINE. MATRIX 2 COLUMN 2 CONTAINS THE INFERRED TONNAGE FOR THE HOPE MINE, BUT NOT THE INDICATED TONNAGE.
  • ABOUT 19,000 TONNES OF INDICATED AND 9000 TONNES OF INFERRED SUBECONOMIC RESOURCES WITH AN AVERAGE GRADE OF 2.4 G/T GOLD AND 123 G/T SILVER ARE IN THE MAIN QUARTZ VEIN. THIS VEIN WITH AN AVERAGE THICKNESS OF 0.9 METERS IS SPORADICALLY EXPOSED ON THE SURFACE FOR 91 METERS AND WAS PRESUMED TO EXTEND AN ADDITIONAL 91 METERS ALONG STRIKE AND 45 METERS DOWNDIP. ONE INFERRED BLOCK IS 91 METERS ALONG STRIKE AND 45 METERS DOWNDIP BELOW THE INDICATED BLOCK. AN ADDITIONAL 2100 TONNES OF INDICATED AND 1000 TONNES OF INFERRED SUBECONOMIC RESOURCES OF 30 G/T SILVER IS IN THE SHEAR ZONE EXPOSED IN THE ADIT. ITS EXPOSED STRIKE LENGTH IS 40 METERS AND THICKNESS IS 0.5 METER. THE ZONE WAS PROJECTED DOWNDIP AND UPDIP FOR ONE-HALF OF THE STRIKE LENGTH. THE INFERRED BLOCK WAS CALCULATED BY EXTENDING THE INDICATED BLOCK 20 METERS ALONG STRIKE. ABOUT 76,000 TONNES OF SUBECONOMIC RESOURCES OF SILVER, ZINC AND LEAD ARE ESTIMATED IN A ZONE OF FISSURE VEINS THAT STRIKE NORTHEAST AND DIP 45 DEG. NW FROM LEVEL 2 TO THE SURFACE. THE ZONE IS EXPOSED FOR 23 METERS ALONG STRIKE, 21 METERS DOWNDIP AND IS 11 METERS THICK. FROM THIS BLOCK, 9,000 TONNES WAS SUBTRACTED FOR PREVIOUSLY MINED ORE, GIVING A 13,000 TONNES OF INDICATED SUBECONOMIC RESOURCES OF 140 G/T SILVER, 4.4 PERCENT ZINC, AND 2.1 PERCENT LEAD. BY EXTENDING THE VEIN DOWNDIP 30 METERS TO LEVEL, 38,000 TONNES OF INDICATED SUBECONOMIC RESOURCES WITH AN AVERAGE GRADE OF 110 G/T SILVER, 3.5 PERCENT ZINC, AND 1.6 PERCENT LEAD WOULD BE IN A TRAPEZOID 20 METERS ACROSS THE BASE AND 11 METERS ACROSS THE TOP. EXTENDING THE VEIN DOWNDIP ONE-HALF ITS 58-METER DIP LENGTH, MAINTAINING THE 20-METER THICKNESS AND 23-METER STRIKE LENGTH, AN ADDITIONAL 35,000 TONNES OF INFERRED RESOURCES CONTAIN AN AVERAGE 6.9 G/T SILVER, 0.38 PERCENT ZINC, AND 0.07 PERCENT LEAD.

Reference information

Bibliographic references

  • Deposit

    TUCKER, W. B., 1926, INYO COUNTY, TWENTY-SECOND REPORT OF

  • Deposit

    THE STATE MINERALOGIST, V. 22 NO. 4, PP. 489-490.

  • Deposit

    TUCKER, W. B., AND SAMPSON, R. J., 1938, MINERAL RESOURCES

  • Deposit

    OF THE INYO COUNTY: THIRTY-FOURTH REPORT OF THE STATE

  • Deposit

    MINERALOGIST, V. 34 NO. 4, PP. 414-415.

  • Deposit

    HOLNES, G. H., 1955, PRELIMINARY EXAMINATION BLACK MINE,

  • Deposit

    INYO COUNTY, CALIFORNIA, 7 P.

  • Deposit

    CALIF. JOUR. MINES AND GEOL., V. 53, 1957, NO. 39, P. 456.

  • Deposit

    RAINS, R. L., AND OTHERS, 1983, MINERAL INVESTIGATION OF THE

  • Deposit

    BLACK CANYON RARE II AREA (NO. 5061), INYO COUNTY

  • Deposit

    CALIFORNIA: U. S. BUREAU OF MINES OPEN-FILE REPORT MLA 85-83,

  • Deposit

    NO. 106, P. 170.

Reporter information

Type Date Name Affiliation Comment
Reporter 31-MAR-1991 Rains, Richard 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.