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Subjects
Geology, History, Lewis and Clark Expedition (1804-1806), Architecture, Congresses, Dams, Design and construction, Guidebooks, Hydrogeology, Nature, Stratigraphic GeologyPlaces
Nebraska, South Dakota, Iowa, Missouri River, Ash Hollow State Historical Park, Ash Hollow State Historical Park (Neb.), Blackwater Draw Formation (Tex. and N.M.), Buffalo County, Great Plains, Harlan County, Harlan County Lake, Kansas, Missouri, Montana, North Dakota, Ogallala Aquifer, The Great Plains, Yellowstone RiverTime
CenozoicID Numbers
- OLID: OL372661A
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September 1, 2008 | Edited by RenameBot | fix author name |
April 1, 2008 | Created by an anonymous user | initial import |