Origin, extent, and thickness of quaternary geologic units in the Willamette Valley, Oregon - O'Connor, Jim E. 1959-.; Oregon. Water Resources Dept. (Reston, Va. Denver, CO U.S. Dept. of the Interior, U.S. Geological Survey 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