U.S. Route 666

By | May 31, 2013

It was 10 years ago, on May 31, 2003, that the American Association of State Highway and Transportation Officials approved a new number for the remaining segments of U.S. 666 in Arizona, Colorado, and New Mexico. At the request of State transportation officials, the route became U.S. 491.

So ended US Route 666.

Route 666 was an original 1926 route. It was a spur off of Route 66 from Gallup, New Mexico to Cortez, Colorado. In 1938, its southern terminus was extended to Douglas, Arizona at the Mexican border. It ran along with U.S. Route 66 for 30 miles before its turn south.

At several points along the route, mountain ranges in 4 states are visible from a single location.

In Utah was a lonely, deserted stretch of road with a long history of accidents and apparitions. Because of this and the reference to 666 being the ‘Number of the Devil’ it has been called The Devil’s Highway.

In 1993, the part in Arizona was renamed as an extension of U.S. Route 191. The change was requested in part because the US 666 signs were among the most frequently stolen in the state.

While US Route 666 no longer exists there is a State Route 666 in Pennsylvania and Ohio. Florida has a State Road 666.


Thank You for Reading

2 Comments so far
  1. Jerry Eades February 28, 2009 10:16 pm

    We are planning to ride 191 the devils highway from border to border in June it is a bikers highway two lanes border to border with only a few diversions to intersates.

    I wish they had kept the 666 designation.

    191 or 666 it’s a helluva ride.

  2. Steven G. Atkinson March 1, 2009 8:53 am

    Thanks for the comment.

    Hoping that you have a great and enjoyable ride. Love to hear how it goes.

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