The Horner Site near Cody, Wyoming, occupies a terrace above Sage Creek and the Shoshone River on the edge of the Bighorn Basin, an area believed to have supported large prehistoric buffalo herds. It became a foundational Paleoindian site because archaeologists recovered both Eden and Scottsbluff projectile points in securely datable geological contexts, helping define the Cody complex across the Great Plains and nearby regions. Discovered in 1939 and excavated formally beginning in 1949, the site drew national attention to the early human history of North America. Though later damaged by illegal collecting, its deeply buried remains have preserved its lasting archaeological importance.