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Cinco Demayo

Occurrence in Mendocino 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. Economic information about the deposit and operations
  10. Land status
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10095100
MRDS ID M010015
Record type Site
Current site name Cinco Demayo
Related records 10237260

Geographic coordinates

Geographic coordinates: -123.07554, 39.91903 (WGS84)

Site location context

Political divisions (FIPS codes)

Mendocino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Leech Lake Mountain(quadrangle 1:24,000 scale)

Covelo(quadrangle 1:100,000 scale)

Ukiah(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Fork Eel(hydrologic unit)

Northern California Coastal(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Mendocino National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Yolla Bolly-Middle Eel Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Mendocino

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 024N 011W 22 California

Commodities

Commodity Importance
Manganese Critical Tertiary

Materials information

Materials Type of material
Rhodochrosite Ore

Nearby scientific data

(1) -123.07554, 39.91903
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: CONTORTED THIN-BEDDED CHERT WITH LAYER OF MANGANESE CARBONATE 8 TO 20 INCHES THICK, PARALLEL TO BEDDING AND CONTORTIONS OF CHERT. VEINS OF QUARTZ AND RHODOCHROSITE ARE NUMEROUS, AND SOME MALACHITE STAINS ARE PRESENT. CARBONATE ORE IS COATED WITH OXIDE. A SERPENTINE DIKE CUTS SANDSTONE AND SHALE N. E. OF THE ORE EXPOSURE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Land status

Ownership category National Forest

Reference information

Bibliographic references

  • Deposit

    CALIFORNIA JOURNAL OF MINES & GEOLOGY V. 49, NO. 4 OCT. 1953, P. 384

  • Deposit

    D.O.M. BULL. 152 1950 P. 116

General comments

Subject category Comment text
Deposit D.O.M. BULL. 152, P. 116, SHOWS THIS CLAIM IN SEC. 27 BUT OTHER PUBLICATIONS INDICATE SEC. 22

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.