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  3. Mineral Resource Data System (MRDS)

Ross Claims

Occurrence in Douglas county in Oregon, United States with commodity Mercury
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10041001
MRDS ID M055908
Record type Site
Current site name Ross Claims
Alternate or previous names Pence and Howell
Related records 10200371, 10298905

Geographic coordinates

Geographic coordinates: -122.86309, 43.0551 (WGS84)

Site location context

Political divisions (FIPS codes)

Douglas(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dumont Creek(quadrangle 1:24,000 scale)

Diamond Lake(quadrangle 1:100,000 scale)

Roseburg(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Umpqua(hydrologic unit)

Southern Oregon Coastal(hydrologic accounting unit)

Oregon-Washington Coastal(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Umpqua 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 Oregon Douglas

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 029S 001W 17 W OF W OF W OF CENTER Oregon

Comments on the location information

  • ABOUT 500 FT N OF 1/4 CORNER SECS. 17 AND 18

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore

Alteration

  • (Local) Mild Clay-Silica Alteration/Impregnation Of Rocks

Analytical data

Result ONE SAMPLE ASSAYED 3.2 LBS/TON HG

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Colestin-Fisher
    Rock description Colestin-Fisher
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene

Nearby scientific data

(1) -122.86309, 43.0551
ListMap

Economic information

Controls for ore emplacement

  • Small Fault Zone; Strike N40e, Dip 65e

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1930
Discoverer Dave Crispen

Land status

Ownership category National Forest
Area name Umpqua National Area

Comments on development

  • SHALLOW SHAFT AND OPENCUTS ALL CAVED

Reference information

Bibliographic references

  • Deposit

    BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P.

  • Deposit

    MERCURY IN OREGON, 1965, USBM IC 8252

  • Deposit

    RAMP, L., 1965, JL CINNABAR GROUP: ODGMI UNPUBLISHED REPORT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-MAR-1981 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site