The Buttermilk Creek complex is the remains of a paleolithic settlement along the shores of Buttermilk Creek in present-day Salado, Texas. The assemblage dates to ~13.2 to 15.5 thousand years old.[1] If confirmed, the site represents evidence of human settlement in the Americas that pre-dates the Clovis culture.[2]
^Waters, Michael R.; Forman, Steven L.; Jennings, Thomas A.; et al. (25 March 2011). "The Buttermilk Creek Complex and the Origins of Clovis at the Debra L. Friedkin Site, Texas". Science. 331 (6024): 1599–1603. doi:10.1126/science.1201855. PMID21436451. S2CID206531951.