NO. 350 MISSION LA PURÍSIMA CONCEPCIÓN (SITE OF) - In October 1780, Father Francisco Garcés and companions began Mission La Purísima Concepción. The mission/pueblo site was inadequately supported. Colonists ignored Indian rights, usurped the best lands, and destroyed Indian crops. Completely frustrated and disappointed, the Quechans (Yumas) and their allies destroyed Concepción on July 17-19, 1781.
St. Thomas Indian Mission: 350 Picacho Road Winterhaven, CA 92283