(US 491) is a north–south U.S. Highway serving the Four Corners region of the United States. One of the newest designations in the U.S. Highway system, it was created in 2003 as a renumbering of U.S. Route 666.
With the 666 designation, this road was nicknamed Devil's Highway because of the common Christian belief that 666 is the Number of the Beast. This satanic connotation, combined with a high fatality rate along the New Mexico portion, convinced some people the highway was cursed. The problem was compounded with persistent sign theft. These factors led to two efforts to renumber the highway, first by officials in Arizona, later in New Mexico. Since the renumbering, as a result of safety improvement projects, fatality rates have decreased. The highway runs through Colorado, New Mexico and Utah, as well as the tribal nations of the Navajo Nation and Ute Mountain Ute Tribe. Features along the route include an extinct volcanic core named Shiprock, Mesa Verde National Park, and the self-proclaimed pinto-bean capital of the world, Dove Creek, Colorado.
