See also:
- United States Federal Highway Administration page with a collection of various auto trail, U.S. highway, and Interstates histories, some from older FHWA publications, as well as other related information. - Catalog of auto trails from the United States and Canada in the 1910s and 1920s; includes route markers and current numbers.- Columbia River Highway - - Scans of photos from a book and transcriptions of their captions of this highway in northern Oregon.
|
- Dixie Highway - - Guide to this eastern U.S. highway system of the early 1900s.
|
- Drive the Old Spanish Trail - - Contains history about and photographs of the former auto trail running along the southern tier of the U.S.
|
- Goodbye, Old Friend - - Includes some historic photographs and details about U.S. Highway 27's former routing in Michigan, now supplanted in the state primarily by US-127 and Interstate 69.
|
- Historic Columbia River Highway - - Site covering the routing in Oregon, U.S. along the river in the general location of modern US 30 and Interstate 84. Includes activity information, pictures, postcards and ephemera scans.
|
- Pete's Road Page - - Contains articles on Northwest Indiana, U.S., roads such as the Dunes Highway, the Chicago-Detroit Post Road, and the Lincoln Highway. Includes maps.
|
- Route 40 - National Road - - Guide to the first federally-funded road in the U.S. (1800s) and the route which followed it later (US 40).
|
- Travel on the Old National Road - - Activity page containing articles and links regarding this U.S. road, now mostly US 40. Part of an educational website about Abraham Lincoln.
|
- Travel the Bozeman Trail - - A gold-rush trail cutting through the hunting grounds of the Northern Plains Indians in Montana and Wyoming, U.S.
|
- US Historic 40 - - Documents the alignment of old US 40 in California from Sacramento eastward.
|
|