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Glacial Lake Missoula and the channeled scablandMissoula Montana to Portland Oregon July 20-26 1989Conference Proceeding BookPublished 1989
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The Butte Mining District MontanaConference Proceeding Bookby Perry, Eugene S. (Eugene Sheridan), 1892-1968-
Published 1932 -
Central OregonConference Proceeding Bookby Chaney, Ralph W. (Ralph Works), 1890-1971
Published 1932