Steven Holen is Co-Director of the Center for American Paleolithic Research, and he holds his degrees from the University of Kansas (Ph.D.) and the University of Nebraska. He has served as the Curator of Archaeology at the Denver Museum of Nature and Science, as State Archaeologist and Tribal Liaison with the Natural Resources Conservation Service (USDA) in South Dakota, and as Public Archaeologist with the University of Nebraska State Museum. His areas of specialization are early humans in the Americas, geoarchaeology, experimental archaeology, Clovis culture, lithic procurement and technology, and bone technology. Dr. Holen's over 40 years of fieldwork span sites of all ages from the historic Oregon Trail to pre-Clovis mammoth hunter sites. His publications include series on Great Plains Paleoindian Archaeology and Ice Age Humans in the Americas, both of which he has edited with his wife, Dr. Kathleen Holen.