2024 Map of Collins Reservoir

About this map

Lone Tree Creek and Willow Creek wind through this remote stretch of Valley County, defining a landscape heavily modified for water storage and range management. The density of small impoundments like Beaverhead Reservoir, Cottonwood Reservoir, and the curiously named Your Name Reservoir indicates the critical importance of water catchment in this arid Montana terrain. The map captures a complex system of drainage and storage, where natural coulees such as Pearson Coulee and White Rock Coulee are utilized alongside man-made features like Divide Number Two Reservoir and T C Drop Dam Reservoir. Access throughout the area is facilitated by established routes including Triple Cross Access Rd and Willow Creek Rd, which link these vital water resources across the township grids of T26N and T25N.