2017 Map of Willow Creek Reservoir

About this map

Willow Creek Reservoir dominates this landscape along the border of Madison and Gallatin counties. The area is defined by a network of drainage and irrigation, notably the Roebert and Warren Ditch which cuts across the western terrain near Harrison Lake Rd. These water management features represent the agricultural history and hydraulic engineering required to manage the semi-arid high country. Historical transportation routes are evident in the Old Yellowstone Trl, reflecting the early twentieth-century push for reliable motor paths through the American West. Fed by Willow Cr and Norwegian Cr, the reservoir serves as a central point for the surrounding cattle country and ranching land. Smaller seasonal watercourses like Dry Hollow Cr and Sand Cr carve through the draws and ridges, illustrating the natural watershed before it reaches the larger basin.