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Buchanan

Past Producer in Madera county in California, United States with commodities Copper, Lead, Silver, Zinc, Gold, Cobalt
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10067584
MRDS ID W000369
Record type Site
Current site name Buchanan
Alternate or previous names Johnson Group, Johnston
Related records 10235966

Geographic coordinates

Geographic coordinates: -119.98737, 37.18687 (WGS84)
Elevation 3048
Relative position 12 MILES FROM MAMMOTH

Site location context

Political divisions (FIPS codes)

Madera(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Raymond(quadrangle 1:24,000 scale)

Shaver Lake(quadrangle 1:100,000 scale)

Mariposa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fresno River(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Madera

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008S 018E 34 California

Commodities

Commodity Importance
Copper Primary
Lead Primary
Silver Primary
Zinc Critical Secondary
Gold Tertiary
Cobalt Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore

Analytical data

Result ORE REPORTED TO ASSAY 15 % CU, $4 AU, 12 OZ AG IN 1908

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -119.98737, 37.18687
ListMap

Economic information

Ore body information

  • Strike N 15 W
    Dip 70 E

Comments on the geologic information

  • GEOL.DESC: VEIN MATTER IS DIABASE AND AMPHIBOLITE SCHIST BOTH MINERALIZED, EAST WALL OF DIABASE DIKE IS GRANODIORITE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1806 , 1865 , 1910 - 1920

Mining district

District name Daulton

Land status

Ownership category National Forest

Comments on the production information

  • 1. CREDITED WITH HAVING SHIPPED 150 TONS OF COPPER BARS UP TO 1866 . 2. SHIPPED 60 % COPPER MATTE TO SAN FRANCISCO IN 1865 . 3 . PRODUCED 1910 - 1920

Comments on the reserve resource information

  • RESERVES UNKNOWN

Workings at the site

  • Type of workings Underground
    Length 338.33M
    Overall depth 60.96M

Comments on the workings information

  • 5 TUNNELS, RESPECTIVELY 500 , 120 , 100 , 60 AND 30 FT. IN LENGTH. TWO SHAFTS EACH 200 FT. DEEP.

Reference information

Bibliographic references

  • Deposit

    AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL. 50 ; CALIF. MIN. BUR., P. 270 - 272 .

  • Deposit

    ERIC, J. H., 1948 COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 261

  • Deposit

    LOGAN, C. A., 1950 , MINES AND MINERAL RESOURCES OF MADERA COUNTY, CA.; CA. JOUR. MINES AND GEOLOGY, VOL. 46 , NO. 4 , P. 450 .

  • Deposit

    MCLAUGHLIN, R. P., 1916 , MADERA COUNTY; 14TH REPT. STATE MIN.; CALIF. MIN. BUR., P. 538 .

  • Production

    1. MCLAUGHLIN, 2. LOGAN, 3. ERIC

  • Reserve-Resource

    UNPUBLISHED CO REPORT

General comments

Subject category Comment text
Deposit ORES PRINCIPALLY OXIDES - AT DEPTH ARE UNALTERED SULFIDES. SEVERAL SMALL ORE SEAMS FOUND EAST AND PARALLEL TO MAIN VEIN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1972 Coury, Anny B. U.S. Geological Survey
Updater 01-OCT-1978 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey

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.