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Dreamland Mine

Producer in Sonoma 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. Ore body information
  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 10109396
MRDS ID M020243
Record type Site
Current site name Dreamland Mine

Geographic coordinates

Geographic coordinates: -122.78885, 38.56932 (WGS84)
Relative position 2 MI. N. W. OF MARK WEST SPRINGS, ON THE KELLOG ROAD. 8 MI. BY ROAD TO FULTON.

Site location context

Political divisions (FIPS codes)

Sonoma(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healdsburg(quadrangle 1:24,000 scale)

Healdsburg(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Russian(hydrologic unit)

Northern California Coastal(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Sonoma

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008N 008W 06 California

Commodities

Commodity Importance
Manganese Critical Primary

Analytical data

Result AVERAGE GRADE 40 PERCENT MANGANESE

Nearby scientific data

(1) -122.78885, 38.56932
ListMap

Economic information

Ore body information

  • Thickness 0.61M

Comments on the geologic information

  • GEOL.DESC: 1 1/2 TO 2 FT. THICK ORE BED IS ENCLOSED IN THIN-BEDDED RADIOLARIAN CHERT. OVERLYING ORE, AND SEPARATING IT FROM CHERTS ABOVE IS A 6 TO 12 INCH THICK BED OF YELLOW JASPER. ORE IS SOFT BLACK CRYSTALLINE MATERIAL WITH SOME IRON OXIDE LAMINATIONS. CHERTS BELOW ORE ARE STAINED WITH MANGANESE OXIDE. ORE AND ENCLOSING CHERTS ARE WARPED AND CUT BY A FAULT.

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. 283 - 284

  • Deposit

    D.O.M. BULL. 125 1943 P. 186

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.