Remarkable national historic landmark yields evidence of continuous human occupation from approximately 12,000 B.C. to the present. Little disturbed stratigraphic and artifactual records identify prehistory cultures including early Clovis, Folsom, Plainview, and Firstview peoples. Due to its nearly complete record of human activity, it is one of the most important archaeological sites in North America. Excavations have revealed remains of extinct mammoth, horse, camel, giant bison, and a 6-ft. long armadillo. Archaeological excavations continue each summer; crews often international with students from around the world. Today, guests of the Nash Interpretive Center may enjoy interactive exhibits and hands-on activities.