1958 Map of Lewis Reservoir

About this map

The Charles M Russell National Wildlife Range dominates this portion of Valley County, where the landscape is defined by an intricate network of coulees and ridges transitioning toward the Missouri River Basin. This mid-century survey illustrates a period of significant water management and land experimentation, highlighted by the Rentention Levees Experimental Area and the Willow Flat Diversion Dam. The area is densely populated with small-scale reservoirs such as Willow Creek Flat Reservoir, Lost McMenomey Reservoir, and VR 33 Reservoir, which speak to the complex ranching and wildlife preservation needs of this arid Montana environment.