In the valley of the Gila and on its tributaries from the northeast are the Pimas, Maricopas, and Papagos.
1895, J[ohn] W[esley] Powell, chapter I, in Canyons of the Colorado, Meadville, PA: Flood & Vincent; republished as The Exploration of the Colorado River and Its Canyons, New York: Dover, 1961, page 24