Travel the Bozeman Trail
A gold-rush trail cutting through the hunting grounds of the Northern Plains Indians in Montana and Wyoming, U.S.

New England Interstate Highways of the 1920s
Route log of the system that predated the U.S. highway system.

Oregon Trail: The Trail West
Detailed information about trail from Oregon to Missouri.

Dixie Highway
Guide to this eastern U.S. highway system of the early 1900s.

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).

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.

A Few Ghostation and Ghostroad Pix
Description and photos of former US 80 through California and Arizona including the old plank road.

The Yellowstone Trail
Guide to the old highway along the northern tier of the United States.

Interregional Highways
Early plans for systems in the United States, some implemented, some not.

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.

Historic Auto Trails of Massachusetts
History and photographs from the ones in the western part of the state and nearby areas.

US-112: A Michigan Journey
Travelogue and old maps covering the route which US 12 supplanted.

US Historic 40
Documents the alignment of old US 40 in California from Sacramento eastward.

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.

Columbia River Highway
Scans of photos from a book and transcriptions of their captions of this highway in northern Oregon.

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.

Great Platte River Road Archway Monument
Structure built over I-80 in Nebraska, U.S., commemorating the old wagon trail. Virtual tour included.

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.

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.