1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Big Little Bear Calaveras Manganese Claim

Prospect in Calaveras county in California, United States with commodity Manganese
Map
XML
JSON
KML
C
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 10097012
MRDS ID M005746
Record type Site
Current site name Big Little Bear Calaveras Manganese Claim

Geographic coordinates

Geographic coordinates: -120.72851, 38.10491 (WGS84)
Relative position PROCEED ALONG ROAD FROM ALTAVILLE TOWARD MILTON FOR 14 MI. TO SALT SPRING VALLEY, TURN N FOR 1.3 MI. TO STEGMAN'S RANCH; POOR ROAD LEADS 3.5 MI. NE TO CABIN ON W SLOPE OF BEAR MTN. RIDGE; A TRAIL THEN LEADS 1/4 MI. SE TO THE PROSPECT, WHICH IS IN A SMALL RAVINE.

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Salt Spring Valley(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Calaveras(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 003N 011E 14,24 California

Commodities

Commodity Importance
Manganese Critical Tertiary

Materials information

Materials Type of material
Bementite Ore
Psilomelane Ore

Nearby scientific data

(1) -120.72851, 38.10491
ListMap

Economic information

Ore body information

  • Strike N 40 W
    Dip 55 NE
    Thickness 1.22M
    Length 3.05M

Comments on the geologic information

  • GEOL.DESC: MASSIVE RED CHERT ENCLOSED IN GREEN META-VOLCANICS, LENSES OF MANGANESE ORE ARE ENCLOSED BY MASSIVE CHERT. MANGANESE ORE IS MAINLY PSILOMELANE, WITH SOME NEOTOCITE, BEMENTITE, AND A LITTLE LIGHT BROWNISH GRAY MANGANESE CARBONATE.

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; B. 125, P. 106

  • Deposit

    EC. MINERAL MAP NO. 5, 1943

  • Deposit

    COUNTY REPT. NO. 2, P. 211 AND PL.D

  • Deposit

    U.S.B.M. R.I. 5579 , P. 22 ; U.S.G.S. MAP G Q-222

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.