Origin, extent, and thickness of Quaternary geologic units in the Willamette Valley, Oregon - O'Connor, Jim E., 1959-; Oregon. Water Resources Dept.; U.S. Geological Survey (Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by the U.S. Geological Survey, Information Services, 2001)
One folded col. map in pocket.
Includes bibliographical references (p. 37-40).
Keywords: Geology, Stratigraphic -- Quaternary; Geology -- Oregon -- Willamette River Valley