(Saint Peter and Saint Paul). A mission established by Fray Francisco Garcés in 1780 among the Yuma on the west bank of Colorado River, near the site of modern Fort Defiance (Pilot Knob), 8 or 10 miles below Yuma, in extreme south east California.
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On July 17-19, 1781, the mission was sacked and burned by the natives, about 50 Spaniards, including Garcés, three other friars, and Capt. Rivera y Moncada were killed, and the women and children made captives.