The Colorado River Indian Reservation is a native American reservation in the southwest of the United States, at the border of Arizona and California. The Reservation was established in 1865 and has an area of about 1,100 square kilometres. The reservation's economy is mainly driven by agriculture and recreation. The 100 m image of 16 May 2015 shows the Reservation within the desert area. The irrigated agricultural areas are visible by the green rectangular patches.