Evergreen National Highway was an informal auto trail stretching from Portland, Oregon, to El Paso, Texasthat existed in the United States and Canada in the early part of the 20th century. In the mid-to-late 1920s, the auto trails were essentially replaced in the United States with the system of numbered U.S. Highways.

Above is a thumbnail of the Ohio section of the 1918 AAA Map of transcontinental routes, showing the Lincoln Highway (full route shown below), where my extended family live. As you can see, prior to 1926, not only was the physical infrastructure poor, but the graphical wayfinding was complex and equally poor.