2021 Map of Chapman Bench

About this map

Clarks Fork Yellowstone River flows through this Wyoming landscape, where the land is defined by distinct elevated plateaus known as benches. Agricultural development in this arid region is visible through the engineering of the Lake Cr Ditch and the State Ditch, which divert water to support local ranching and farming. The topography transitions from the high, flat surface of Chapman Bench down into rugged drainage systems like Little Sand Coulee. Numerous seasonal and perennial streams, including Pat O'Hara Cr and Paint Cr, carve through the terrain, while local routes such as Little Sand Coulee Rd provide access through the valley floors. This map captures the intersection of natural watercourses and the irrigation infrastructure necessary to manage the high plains environment.