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  3. Mineral Resource Data System (MRDS)

Ponderosa

Occurrence in Calaveras county in California, United States with commodity Iron
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10029039
MRDS ID M006376
Record type Site
Current site name Ponderosa

Geographic coordinates

Geographic coordinates: -120.51518, 38.1388 (WGS84)
Relative position SW1/4 NE1/4. 2 MI. SE OF ESMERALDA BY PONDEROSA WAY.

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Calaveritas(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 013E 02 California

Commodities

Commodity Importance
Iron Primary

Nearby scientific data

(1) -120.51518, 38.1388
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: MASSIVE MAGNETITE INTERLAYERED WITH ANTIGORITE IS PRESENT ON THE DUMP OF A SHALLOW CAVED PROSPECT PIT; MAGNETITE LAYERS ARE AS MUCH AS HALF AN INCH THICK. MOST OF THE ROCK SHOWS LESS THAN 50% MAGNETITE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on the workings information

  • DEVELOPED BY OPEN PIT.

Reference information

Bibliographic references

  • Deposit

    CALIF. SP. REPT. 40, P. 21, AND PL. 1 AND 2

  • Deposit

    CALIF. COUNTY REPT. NO.2, P. 93, 210 AND PL. D

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. 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.