Quechan

thumb|right|200px|Yumas in "United States and Mexican Boundary Survey. Report of William H. Emory…" Washington, 1857, Volume I The Quechan (Quechan: Kwatsáan 'those who descended'), or Yuma, are a Native American tribe who live on the Fort Yuma Indian Reservation on the lower Colorado River in Arizona and California just north of the Mexican border. Despite their name, they are not related to the Quechua people of the Andes. Members are enrolled in the Quechan Tribe of the Fort Yuma Indian Reservation. The federally recognized Quechan tribe's main office is located in Winterhaven, California.

group of gigantic figures incised on the ground in the Colorado Desert, United States

thumb | right | alt=Location of the Patayan culture, in western Oasisamerica | Location of the Patayan culture, in western Oasisamerica Patayan refers to a group of precontact and historical Native American cultures residing in parts of modern-day Arizona, extending west to Lake Cahuilla in California, and in Baja California.

United States Army fort from 1851

Yuman language originating in southern California