| • | A Few Ghostation and Ghostroad Pix - Description and photos of former US 80 through California and Arizona including the old plank road. |
| • | 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. |
| • | El Camino Real de Tierra Adentro National Historic Trail - Management plans and interactive maps about this trail which traverses the country of Mexico and the U.S. state of New Mexico. |
| • | 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. |
| • | Great Platte River Road Archway Monument - Structure built over I-80 in Nebraska, U.S., commemorating the old wagon trail. Virtual tour included. |
| • | Highway History - 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. |
| • | Historic Auto Trails of Massachusetts - History and photographs from the ones in the western part of the state and nearby areas. |
| • | 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. |
| • | Indiana's Historic National Road - Covers that state's portion of the road from Illinois to Maryland, U.S. Includes history and attraction listing. |
| • | Interregional Highways - Early plans for systems in the United States, some implemented, some not. |
| • | New England Interstate Highways of the 1920s - Route log of the system that predated the U.S. highway system. |
| • | North American Auto Trails - Catalog of auto trails from the United States and Canada in the 1910s and 1920s; includes route markers and current numbers. |
| • | On the Trail of the Named Highways from Chicago to the Southwest - Gives descriptions of these auto trails with specific mention of the Pontiac Trail. |
| • | Oregon Trail: The Trail West - Detailed information about trail from Oregon to Missouri. |
| • | 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). |
| • | The Yellowstone Trail - Guide to the old highway along the northern tier of the United States. |
| • | 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. |
| • | Traveling the Dixie Highway in Michigan - Photographs with descriptions from the eastern branch of the highway. |
| • | US Historic 40 - Documents the alignment of old US 40 in California from Sacramento eastward. |
| • | US-112: A Michigan Journey - Travelogue and old maps covering the route which US 12 supplanted. |
