Prehistory: Hohokam
The Hohokam, the desert farmers of the American Southwest, were centered in the middle Gila and Salt river drainage basins in the semiarid Sonoran Desert of Arizona. This landscape had some mountain ranges separated by level basins or plains. The mountains were important as a source of natural water in springs and rock tanks and as a collector of rain as runoff for floodwater farming. High temperatures, low humidity, and little rain characterize the desert climate.
…
