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Callahan Prospect

Prospect in Calaveras county in California, United States with commodity Manganese
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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. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10028640
MRDS ID M005737
Record type Site
Current site name Callahan Prospect

Geographic coordinates

Geographic coordinates: -120.75018, 37.9813 (WGS84)
Relative position 7.5 MI. SE OF MILTON; 0.2 MI. FROM END OF A POOR ROAD NEAR BOTTOM OF A CANYON IN GENTLY ROLLING HILLS. USGS MAP GP-561 SHOWS A MN MINE IN SW1/4 SE1/4 OF SECTION

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bachelor Valley(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower San Joaquin River(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002N 011E 34 California

Commodities

Commodity Importance
Manganese Critical Tertiary

Materials information

Materials Type of material
Psilomelane Ore
Rhodonite Ore

Analytical data

Result AVERAGE GRADE 40 PERCENT MANGANESE

Nearby scientific data

(1) -120.75018, 37.9813
ListMap

Economic information

Ore body information

  • Strike N
    Dip VERTICAL
    Length 10.67M
    Width 0.61M

Comments on the geologic information

  • GEOL.DESC: LENS OF MANGANESE ORE IS MAINLY HARD, BLUE BLACK PSILOMELANE, IN GREY FLINTY CHERT. MANGANESE ORE AND CHERT ARE ENCLOSED IN META-TUFFS (?) AND META VOLCANICS (PROBABLY OF AMADOR GROUP). SOME SMALL PATCHES OF PINK RHODONITE.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    CALIF. B. 152,P. 40-41; B. 125, P. 106

  • Deposit

    EC. MINERAL MAP NO. 5, 1943

  • Deposit

    USBM R.I. 5579, P. 22

  • Deposit

    CALIF. COUNTY REPT. NO. 2 , P. 211 AND PL. D; USGS MR-23

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. U.S. Geological Survey
Updater 01-APR-1977 Von Dohlen, E.; Albers, J. U.S. Geological Survey

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.