Garcés travelled to New Spain and served at the Franciscan college of Santa Cruz in Querétaro. In 1768, when the King of Spain expelled the Jesuits from their extensive mission system in northwestern New Spain, Garcés was among the Franciscan replacements. He was assigned to Mission San Xavier del Bac in the Sonoran Desert, near present-day Tucson, Arizona.
Missionary
The expulsion of the Jesuits by the Spanish King set in motion a sequence of dramatic events in the missions. The Franciscans from the college of Santa Cruz in Querétaro took over responsibility in the Sonoran Desert missions region in the present-day Mexican state of Sonora and the U.S. state of Arizona. Meanwhile, other Franciscans from the college of San Fernando in Mexico City under the leadership of Junípero Serra, were assigned to replace the Jesuits in the Baja California missions of the lower Las Californias Province.
In 1779-81 Garcés and Juan Díaz established two mission churches on the lower Colorado River at Yuma Crossing, as part of a new pueblo, in the homeland of the Quechan peoples. Garcés tried to keep peace between all parties. The formerly peaceful rapport with the Quechan was lost due to Spanish settlers allegedly violating the treaty with the native peoples, such as loss of crops and farmlands. In July 1781, Garcés, Díaz and their fellow friars were among those killed in a violent uprising at the Mission San Pedro y San Pablo de Bicuñer, known as the Yuma Uprising and Yuma Revolt. Garcés' body was later reinterred at Mission San Pedro y San Pablo del Tubutama. He and the other friars killed at those missions are considered martyrs by the Catholic Church. , Needles. , Bakersfield.
Legacy
;El Garces Hotel The El Garces Hotel, named in Francisco Garcés' honor, is the historic 1908 Santa Fe Railroad station and Harvey House hotel 'oasis' located in the City of Needles. It is located in eastern California above the Colorado River, a site Garcés passed through during the 1776 Anza expedition. The El Garces Hotel was built by the Santa Fe Railroad under contract with the Fred Harvey Company. It is designed in an elegant Neoclassical and Beaux-Arts style, and the El Garces was considered the "Crown Jewel" of the entire Fred Harvey chain. ;National Forest Garces National Forest was established by the U.S. Forest Service in southern Arizona on July 1, 1908 with from portions of Baboquivari, Tumacacori and Huachuca National Forests. The name was discontinued in 1911 when it was combined with Coronado National Forest. ;Bakersfield The first Tejon Pass between the Mojave Desert over the Tehachapi Mountains to the southern San Joaquin Valley floor, California, had been discovered by Garcés in 1776, eastward from the Anza Colonizing Expedition route. Therefore, there are several landmarks for Francisco Garcés in Bakersfield, California: Garces Memorial High School, the city's Catholic high school; and on Chester Avenue Garces Memorial Circle, with a memorial statue of Garcés. ;Las Vegas, Nevada The original platted east–west streets of the 1905 Las Vegas Township are all named for significant North American explorers, beginning with Stewart on the north, then Ogden, Fremont, Carson, Bridger, Lewis, Clark, Bonneville, Gass, and finally Garces on the south. ; Reno, Nevada St. Thomas Aquinas Cathedral has a stained glass window dedicated to Fray Garces.