Dedicated in 1926, the Clifton to Springerville stretch of road in eastern Arizona was officially named Route 666. Because of hairpin turns and beastly number, it soon earned the nickname of the Devil’s Highway. It is now US Route 191. Route 66 is a relic of the former U.S. Route 66 in Arizona and is the only part of old US 66 in Arizona to have state route markers.
If you click on the link I have "Route 66", you will learn a lot about it. It is quite interesting . I will click on it again.
I just clicked on my link to Route 66. Before I posted the link, I looked at all the information. Very interesting. I would like to know if anyone in Sun City ever traveled Route 66.
If you click on my link above "Route 66", all your questions should be answered. Actually, Route 66 in AZ is a popular destination. It this does not answer your question, please ask me more.