An uncommon promotional map for the valley, with great detail. Best summed by a small inset for Colorado that calls it the "Sunny" San Luis Valley, this map shows all the potential for an area of Colorado that had been promoted for decades. This gem of a map shows all the towns, drainage ditches, roads, railroads, as well as the water districts and topography.
Condition is good with marginal worming. Image size is 26 X 17.