One of the last maps in the sequence of maps of the American southwest by the Johnson firm, issued about two decades after the first. By the time this map was issued, the states and territories shown all had the borders they do today. This was still a relatively sparsely settled and developed area, so many Indian tribes are shown and a number of blank or poorly delineated areas are included. However, the pony express, explorer and immigrant trails are no longer shown, though there are myriad more established roads/trails indicated. And where the earlier maps show the “proposed routes” for the railroads, this map is filled with depictions of the many railroads that criss-cross the region. A wonderful snap-shot of the American west that was no longer totally “wild,” but was also still very much a frontier.