Residual boulders in weathering in basalt. Clackamas County, Oregon. 1929.
Dates
Date Taken
1929
Summary
Album caption: Residual boulders in weathering in basalt beneath 550-feet erosion terrace, cut on Molalla-Oregon City road in the NE1/4 sec. 21, T. 3 S., R. 2 E. Oregon City quadrangle, Clackamas County, Oregon. July 25, 1929.
Summary
Album caption: Residual boulders in weathering in basalt beneath 550-feet erosion terrace, cut on Molalla-Oregon City road in the NE1/4 sec. 21, T. 3 S., R. 2 E. Oregon City quadrangle, Clackamas County, Oregon. July 25, 1929.
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Available in the U.S. Geological Survey Denver Library Photographic Collection, Piper, A.M. Collection.
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