Includes information about the El Camino Real de Tierra Adentro National Historic Trail, which traverses the country of Mexico and the U.S. state of New Mexico.

Structure built over I-80 in Nebraska, U.S., commemorating the old wagon trail. Virtual tour included.

Covers that state's portion of the road from Illinois to Maryland, U.S. Includes history and attraction listing.

Organization focused on promoting the history of the first byway going west across America, currently known as U.S. Route 40. Includes history of the road, stories, membership details, and contacts.

Organization involved in preparing the 2029 celebration of the auto trail. Includes history and travel log scans of the route.

Guide to the first federally-funded road in the U.S. (1800s) and the route which followed it later (US 40).

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