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Hughes

Producer in Tuolumne 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. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10077861
MRDS ID W025920
Record type Site
Current site name Hughes
Related records 10214905

Geographic coordinates

Geographic coordinates: -120.34322, 37.76048 (WGS84)
Elevation 381
Relative position 6 MI S.W. OF MOCCASIN, 15 MI. S.E. TO BARRETT STATION ON YOSEMITE VALLEY RAILROAD

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Moccasin(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Tuolumne(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California Tuolumne

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002S 015E 17 California

Comments on the location information

  • UTM APPROX. ; INFO FROM LAND.ST :UNDETERMINED

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Psilomelane Ore
Rhodonite Ore

Analytical data

Result AVERAGE GRADE 30 PERCENT MANGANESE

Nearby scientific data

(1) -120.34322, 37.76048
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: ORE OCCURS IN THICK-BEDDED RED CHERT, AND SOME PALE GREEN AND WHITE CHERT. CHERT IS ENCLOSED IN METATUFF (?) AND GREEN METAVOLCANICS, OF THE AMADOR GROUP. THEY STRIKE N 25 TO 50 E, AND DIP IN GENERAL 70 S.E. ORE IS MAINLY HARD, BRITTLE PSILOMELANE, GENERALLY CHERTY. SOME PINK RHODONITE IS PRESENT.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 152 1950 PP. 343 - 344

  • Deposit

    D.O.M. BULL. 125 1943 PP. 207 , 65 , 91

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1978 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.