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Mollala River Group

Occurrence in Clackamas county in Oregon, United States with commodities Gold, 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. Land status
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10036467
MRDS ID M025279
Record type Site
Current site name Mollala River Group
Related records 10249488

Geographic coordinates

Geographic coordinates: -122.26617, 44.97953 (WGS84)

Site location context

Political divisions (FIPS codes)

Clackamas(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rooster Rock(quadrangle 1:24,000 scale)

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

Salem(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Molalla-Pudding(hydrologic unit)

Willamette(hydrologic accounting unit)

Willamette(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Oregon Clackamas

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 007S 004E 12 Oregon

Commodities

Commodity Importance
Gold Primary
Copper Primary

Materials information

Materials Type of material
Limonite Gangue

Analytical data

Result PYRITIFEROUS GOUGE ASSAYED 0.005 OZ/TON AU
Result TRACE CU
Result NIL AG, ZN, PB

Host and associated rocks

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

Nearby scientific data

(1) -122.26617, 44.97953
ListMap

Economic information

Ore body information

  • Width 152.4M

Comments on the geologic information

  • WIDE ALTERED ZONE CONTAINS CLAYS AND MINOR AMOUNTS OF DISSEMINATED SULFIDES.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name North Santiam

Land status

Ownership category Private

Reference information

Bibliographic references

  • Deposit

    OREGON METAL MINES HANDBOOK, 1951, ODGMI BULL, 14-D, P. 122

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-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.

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