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Riverside Group

Past Producer in Linn county in Oregon, United States with commodities Gold, Silver, Zinc, Lead, Copper
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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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10036329
MRDS ID M025102
Record type Site
Current site name Riverside Group
Alternate or previous names Spotted Fawn
Related records 10153831

Geographic coordinates

Geographic coordinates: -122.30699, 44.57981 (WGS84)

Site location context

Political divisions (FIPS codes)

Linn(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Quartzville(quadrangle 1:24,000 scale)

North Santiam River(quadrangle 1:100,000 scale)

Salem(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Santiam(hydrologic unit)

Willamette(hydrologic accounting unit)

Willamette(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Willamette 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 Linn

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 011S 004E 27 E Oregon

Comments on the location information

  • E 1/2

Commodities

Commodity Importance
Gold Primary
Silver Tertiary
Zinc Critical Tertiary
Lead Tertiary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue

Analytical data

Result VEIN SAMPLE ASSAYED 1.32 OZ/TON AU
Result 0.98 OZ/TON AG

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Sardine Formation
    Rock description Sardine Formation
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -122.30699, 44.57981
ListMap

Economic information

Ore body information

  • Strike N30W
    Dip 90
    Length 213.36M
    Width 1.83M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1912

Mining district

District name Quartzville

Comments on the workings information

  • DEVELOPED BY SEVERAL OPEN CUTS AND ABOUT 500 LINEAL FEET IN NINE TUNNELS.

Reference information

Bibliographic references

  • Deposit

    BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON; ODGMI BULL. 61, P. 297

  • Deposit

    OREGON METAL MINES HANDBOOK, 1951, ODGMI BULL. 14-D, P. 105

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1981 Ferns, Mark L. (Brooks, Howard C.) Oregon Department of Geology and Mineral Industries
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