Kingman is a city in Mohave County, Arizona, &amp; is also the county seat.  Lt. Edward Fitzgerald Beale, a U.S. Navy officer in service of U.S. Army Corps of Topographical Engineers, was ordered by U.S. War Department to build a federal wagon road across 35th Parallel. His secondary orders were to test feasibility of use of camels as pack animals in southwestern desert. He surveyed in Kingman in 1857 &amp; in 1859 to build the road. The road became part of Highway 66 &amp; Interstate Highway 40.