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  3. Mineral Resource Data System (MRDS)

Lombardi

Occurrence in Napa 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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10092383
MRDS ID M010760
Record type Site
Current site name Lombardi

Geographic coordinates

Geographic coordinates: -122.35578, 38.70599 (WGS84)
Relative position 1 MI. E OF PUTAH CREEK

Site location context

Political divisions (FIPS codes)

Napa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Walter Springs(quadrangle 1:24,000 scale)

Healdsburg(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Napa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 010N 005W 13 California

Comments on the location information

  • UTM APPROX

Commodities

Commodity Importance
Manganese Critical Tertiary

Nearby scientific data

(1) -122.35578, 38.70599
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: OPALINE IRON MANGANESE ORE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Paul Lombardi

Comments on the production information

  • NO PRODUCTION.

Reference information

Bibliographic references

  • Deposit

    CALIF. BULL. 125, 1943, P. 146

  • Deposit

    BULL. 152, 1950, P. 158

General comments

Subject category Comment text
Deposit A SAMPLE TAKEN FROM THIS CLAIM GAVE THE FOLLOWING RESULT ON ASSAY: MANGANESE 3.5%; FERRIC OXIDE, 41.2%; SILICA, 39.1%; AND IGNITION LOSS, 9.1%.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-DEC-1977 Killman, K.; 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.