"Noon the following day they struck route 666"
Route 666, Monticello, Utah
Creative Commons Attribution Share AlikeRoute 666, Monticello, Utah - Credit: Ken Lund

Route 666 was the former name of the highway which runs through Colorado, New Mexico and Utah.

The route was nicknamed the Devil's Highway because of the number's association with the Number of the Beast. This satanic connotation, combined with a high fatality rate along the New Mexico portion, led many to believe the highway was cursed. As a result, the highway was renamed Route 491 in 2003.