Eric Clausen is a geomorphologist specializing in the interpretation of topographic map drainage system and erosional landform evidence. He was trained at Columbia University and t...mehr sehenEric Clausen is a geomorphologist specializing in the interpretation of topographic map drainage system and erosional landform evidence. He was trained at Columbia University and the University of Wyoming, spent many years as a geology faculty member at North Dakota's Minot State University, and currently lives and conducts topographic map drainage system and erosional landform research in Jenkintown, Pennsylvania.weniger sehen