This is the only excavated village of the Valley focus, an early Plains-Woodland culture. The site suggests a trade or cultural network emanating from the Midwest's Hopewell culture, which linked other groups from the eastern seaboard to the Gulf of Mexico to the northern Rocky Mountains.
^ abc"Schultz Site". National Historic Landmark summary listing. National Park Service. Retrieved 2008-05-06.
^Note: A National Register of Historic Places Inventory-Nomination document, perhaps redacted to remove location information, should be available upon request from the National Park Service for this site, but it appears not to be available on-line from the NPS Focus search site.