Route 66, the gateway to the southwest, was created when the state was only 14 years old. Today, there are over 260 miles of pre-interstate era Route 66 that remains drivable. In a few places, the old road is still designated as a state highway, although none continue to carry the U.S. 66 designation. Other portions have reverted back to county or tribal maintenance. The remaining miles have long since been covered over with super highway, I-40.
Another major undertaking in New Mexico, was the Route 66 Neon Sign Restoration project by the New Mexico Route 66 Association. The Association has restored vintage neon signs in Tucumcari, Santa Rosa, Moriarty, Albuquerque, Grants and Gallup resulting in a renewed pride in Route 66 heritage. The project is a partnership of the New Mexico Route 66 Association, the New Mexico Historic Preservation Division and the National Park Service Route 66 Corridor Preservation Office.
Here is an excellent documentary regarding the restoration of vintage neon signs along Route 66. [link] It is a bit long but well worth the time if this sort of thing interests you.
good photo