California to allow bicycles on Interstate 40 - Route 66 News
Interstate 40
Route 66 vs I-40: which is better for a road trip? (With map!) - LazyTrips
Preserving the Legacy of a Route 66 That Was Strewn With Jim Crow Pitfalls | KQED
A Group Of Highway Markers On Historic Highway 66 And Interstate 40 In The American Southwest Stock Photo, Picture And Royalty Free Image. Image 122262926.
How to Travel OK Route 66 — Oklahoma Route 66 Association