Site of the mission and pueblo of Nuestra Senora de la Concepcion Del Pueblo de Socorro established by Don Antonio de Otermin and Father Fray Francisco Ayeta, O.F.M. in 1683. Maintained by Franciscan missionaries for the civilizing and Christianizing of the Piro, Thano and Gemex Indians, refugees after the pueblo revolt in New Mexico. Erected by the State of Texas 1936