Guide to digital documents and photographs about the Columbia River area. Columbia River Basin Ethnic History Archive Template:Oregon 45°59′58″N 119°00′05″W
March 5, 2003. p. 10388-10409 美國漁業暨野生動物局,Recovery Outline for the ColumbiaBasin Distinct Population Segment of the Pygmy Rabbit (Brachylagus idahoensis),2004年11月。
互联网档案馆的存檔,存档日期2009-06-09., The Columbia Gazetteer of North America Neuse Riverkeeper Foundation (页面存档备份,存于互联网档案馆) NCDENR: Neuse River Basin (页面存档备份,存于互联网档案馆) NCSU:
Bruce(2006年),On the Trail of the Ice Age Floods: A Geological Guide to the Mid-ColumbiaBasin,Keokee Books; San Point, Idaho,ISBN 978-1-879628-27-4。 维基共享资源上的相关多媒体资源:干瀑布
San Juan Basin, New Mexico. Journal of Vertebrate Paleontology. 2005, 25 (1): 208–213. Matthew, W.D. Paleocene faunas of the San Juan Basin, New Mexico