US lawmakers propose making Route 66 a national historic trail

National Trust launches Preserve Route 66: Share Your Story Campaign

Marketing Perspective: Route 66 Roadside Architecture (U.S. National Park Service)

New Mexico prepares for Route 66 centennial — but which route will be celebrated?, Local News

New bike route designations offer more options for cycling in the region

U.S. Route 66 - Wikipedia

Route 66 National Historic Trail – The Route 66 Road Ahead Partnership

Route 66

Route 66 National Trust for Historic Preservation

Join Advocates to Support a Route 66 National Historic Trail Designation, Route 66