Rhomboidal jointing in massive andesite porphyry right abutment of Boundary damsite. Linn County, Oregon. 1929.
Dates
Date Taken
1929
Summary
Album caption: Oregon, Linn Co., Mill City qd. (Panorama) Rhombiodal jointing in massive andesite porphyry right (north) abutment of Boundary damsite, North Santiam River, 25 yds. west of center line. Aug. 30, 1929. Index card: Rhombiodal jointing in massive andesite. Note: Panorama with pam00261.
Summary
Album caption: Oregon, Linn Co., Mill City qd. (Panorama) Rhombiodal jointing in massive andesite porphyry right (north) abutment of Boundary damsite, North Santiam River, 25 yds. west of center line. Aug. 30, 1929.
Index card: Rhombiodal jointing in massive andesite.
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Available in the U.S. Geological Survey Denver Library Photographic Collection, Piper, A.M. Collection.
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