The Poston Internment Camp, located in Yuma County (now in La Paz County) in southwestern Arizona, was the largest (in terms of area) of the ten American concentration camps operated by the War Relocation Authority during World War II. The site was composed of three separate camps arranged in a chain from north to south at a distance of three miles from each other. Internees named the camps Roasten, Toastin, and Dustin, based on their desert locations. The Colorado River was approximately to the west, outside of the camp perimeter. Poston was built on the Colorado River Indian Reservation, over the objections of the Tribal Council, who refused to be a part of doing to others what had been done to their tribe. However, Army commanders and officials of the Bureau of Indian Affairs overruled the Council, seeing the opportunity to improve infrastructure and agricultural development (which would remain after the war and aid the Reservation's permanent population) on the War Department budget and with thousands of "volunteers." The combined peak population of the Poston camps was over 17,000, mostly from Southern California. At the time Poston was the third largest "city" in Arizona. It was built by Del Webb, who would later become famous building Sun City, Arizona and other retirement communities. The Poston facility was named after Charles Debrille Poston, a government engineer who established the Colorado River Reservation in 1865 and planned an irrigation system to serve the needs of the Indian people who would live there. A single fence surrounded all three camps, and the site was so remote that authorities considered it unnecessary to build guard towers. The thousands of internees and staff passed through the barbed-wire perimeter at Poston I, which was where the main administration center was located. Poston was a subject of a sociological research by Alexander H. Leighton, published in his 1945 book, The Governing of Men. As Time Magazine wrote, "After fifteen months at Arizona's vast Poston Relocation Center as a social analyst, Commander Leighton concluded that many an American simply fails to remember that U.S. Japanese are human beings." Establishment of the camp When Poston was chosen as the site for the relocation center, the Colorado River Indian Reservation Tribal Council adamantly opposed the use of their land because they did not want to be involved in inflicting the same injustice they faced on the Japanese internees. The council