Geology of the St. Helens quadrangles, Oregon
By: by W. D. Wilkinson, W. D. Lowry, and E. M. Baldwin.
Contributors: Lowry, W. D. 1917- joint author.; Baldwin, Ewart Merlin, 1915- joint author.
Series: Oregon. State Dept. of Geology and Mineral Industries. Bulletin -- no. 31
Publisher: Commerce Clearing House
Published: 1946
Place of publication: Portland
Language: eng
Number of pages: 39
Subjects: Geology -- Oregon -- Columbia County; Geology -- Washington (State) -- Clark County; Geology, Stratigraphic -- Tertiary
Notes: Bibliography: p. 38-39.