1949 Map of Ennis

About this map

Ennis Lake dominates this mid-century view of the Madison River valley, serving as a central hub for irrigation and hydroelectric power. The map detail highlights the engineering of the era, from the Madison Powerhouse and Old Madison Powerhouse to an intricate network of flumes and ditches that divert water across the massive Alluvial Fan. These water management systems supported a ranching economy evident in the numerous named family holdings such as the Jumping Horse Stock Ranch, Skelhamer Ranch, and H Lazy B Ranch.