In 1779, Father Francisco Garcés was assigned to establish a mission at Yuma crossing of the Colorado River. In 1780, the Spanish established two combination missions and pueblos at the Yuma Colorado River Crossing of the Anza trail: Mission San Pedro y San Pablo de Bicuñer and Mission Puerto de Purísima Concepción. Both these pueblos and missions were on the California side of the Colorado River near the mouth of the Gila River but were administered by the Arizona authorities.