The Geology of Cass County Nebraska Authors Woodruff, Elmer Grant Publication Date Jan 01, 1906 Source Wageningen University and Researchcenter Publications Keywords Geology Cass County Nebraska Geological Survey Earth Sciences Geology Geomorphology Hydrology Paleontology Physical Sciences And Mathematics Sedimentology Soil Science Stratigraphy License Unknown External links Full record on digitalcommons.unl.edu Full record on digitalcommons.unl.edu