The Fort Mohave Indian Reservation is an Indian reservation along the Colorado River, currently encompassing 23,669 acres in Arizona, 12,633 acres in California, and 5,582 acres in the southernmost point of Nevada. Located around the tri-point of the three states, the reservation is home to approximately 1,100 members of the federally recognized Fort Mojavā¦The Fort Mohave Indian Reservation is an Indian reservation along the Colorado River, currently encompassing 23,669 acres in Arizona, 12,633 acres in California, and 5,582 acres in the southernmost point of Nevada. Located around the tri-point of the three states, the reservation is home to approximately 1,100 members of the federally recognized Fort Mojave Indian Tribe of Arizona, California, and Nevada, a federally recognized tribe of Mohave people.