William Bright: Native American Placenames of the United States. University of Oklahoma Press, Norman 2004, ISBN 0-8061-3598-0, S.515 (books.google.at [abgerufen am 16. April 2012]).
Charles W. Welby, Monica E. Gowan: A Paradox of Power: Voices of Warning and Reason in the Geosciences. Hrsg.: Geological Society of America. Geological Society of America, Boulder, Colo. 1998, ISBN 0-8137-4112-2, S.44 (books.google.at).
Carl Abbott: Greater Portland. Urban Life and Landscape in the Pacific Northwest. University of Pennsylvania Press, Philadelphia, Pa 2001, ISBN 0-8122-1779-9, S.36 (books.google.at).
Christine Barnes: Only in Oregon: Natural and Manmade Landmarks and Oddities. Farcountry Press, 2004, ISBN 978-1-56037-292-9, S.41 (books.google.at).
