Details the history of constructing the trail. Presents facts, myths and other relevant data.

Official site describes the Spanish immigrant trail of the 1600s-1800s. Presents history, exhibits, special events, and heritage.

Provides tours and other activities organized for the old transportation systems.

Details the featured old highway. With gallery of photos and historical profile.

Introduces the interstate highway's history with details on its construction.

Reviews maps from the National Interregional Highway Committee, established in the 1940s to design and create a national highway system.

Announcement of the organization's organized activities. Includes an overview of the group's operations.

Presents the old roads and trails with details on activities and resources.

Overview of the historical road with travel information provided. Features a map and articles.

Provides an article that contains discussion about the trail's features and related studies.

Contents include road news updates, gallery of photos and featured description of routes and interstate highways.

Overview of the featured route plus links to relevant resources provided.

Introduces the various attractions in the road. Includes upcoming events and photo gallery.

Presents the automobile route's maps and related publications. Includes links to resources.