Located 6 miles northwest of this marker. Favorite campsite of prehistoric Indians, and of later traders, military parties and hunters, from time of 18th Century Spanish explorations. Meeting place of 19th Century Plains Indians with traders, smugglers and the renegade peddlers called Comancheros. Summer range home ground of Mexican shepherds before the cowmen came in the 1870's. Since 1881, location of the headquarters of the Frying Pan, ranch started by J.F. Glidden and Henry S. Sanborn, inventors and promoters of barbed wire. (1964)