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1980
Geologic field trips in Western Oregon and Southwestern Washington In Bulletin / State of Oregon, Department of Geology and Mineral Industries, Edited by Keith F. Oles, Granville J. Johnson, Alan R. Niem and Wendy A. Niem. Vol. no.101. Bulletin 101 no.101. Oregon Department of Geology and Mineral Industries, 1980.
→ www.oregongeology.org/pubs/B/B-101.pdf