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Sylvester Prospect

Occurrence in Siskiyou 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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10033625
MRDS ID M020235
Record type Site
Current site name Sylvester Prospect
Related records 10116668

Geographic coordinates

Geographic coordinates: -123.31836, 41.76761 (WGS84)
Relative position ON THE E. SIDE OF FRYINGPAN CREEK, A TRIBUTARY OF THE KLAMATH RIVER. 4 MI. BY ROAD AND 1 1/2 MI. BY TRAIL FROM HAPPY CAMP, AND 79 MI. FROM YREKA.

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Slater Butte(quadrangle 1:24,000 scale)

Happy Camp(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Klamath(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Klamath National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Siskiyou

Public Land Survey System information

Meridian Township Range Section Fraction State
Humboldt 016N 008E 20 California

Commodities

Commodity Importance
Manganese Critical Tertiary

Materials information

Materials Type of material
Rhodonite Ore

Analytical data

Result HIGHEST GRADE 12 PERCENT MANGANESE

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -123.31836, 41.76761
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: GRAY SLATE STAINED WITH MANGANESE OXIDE, STRIKING N 45 E AND DIPPING 10 S. E., RANGES IN THICKNESS FROM 2 TO 10 FT. AT INTERVALS ALONG OUTCROP ARE EXPOSURES OF QUARTZITE CARRYING SMALL AMOUNTS OF RHODONITE. QUARTZITE APPEARS TO BE LENSES IN SLATE. AT THE NORTH END OF OUTCROP FINE GRAINED PORPHYRITIC METADIORITE IS EXPOSED, AND APPARENTLY INTRUDES SLATE AS A SILL. ALL ROCKS ARE STAINED BY IRON OXIDE.

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

    D.O.M. BULL. 152 1950 P. 279

  • Deposit

    D.O.M. BULL. 125 1943 P. 185

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.