The Yuma War was the name given to a series of United States military operations conducted in Southern California and what is today southwestern Arizona from 1850 to 1853. The Quechan were the primary
Yumans along the Colorado River by William Emory, circa 1857.
The Cocopah are Native Americans who live in Baja California, Mexico, and Arizona, United States.
Middle Sky, Cocapah, photo by Frank A. Rinehart, 1899 (hand-colored)