Archeological excavations indicate settlement in the area from approximately 5000 years ago, as well as ritual use of peyote by the inhabitants.M. Terry, K.L. Steelman, T. Guilderson, P. Dering, M.W. Rowe. Lower Pecos and Coahuila peyote: new radiocarbon dates. Journal of Archaeological Science, 33 (2006), pp. 1017-1021
