2020 Map of Mann Creek NW

About this map

Payette National Forest dominates the northern reaches of this Washington County landscape, where high-elevation drainages like Adams Cr and Fir Cr feed into the regional water system. The topographic detail captured by the U.S. Geological Survey illustrates a rugged network of ridges and creek beds that defined the movement of early settlers and ranching operations. Significant water management is evident at the Mann Creek Reservoir and Fairchild Reservoir, which serve as critical hubs for the surrounding terrain. Access to these higher elevations is provided by a network of established routes, including Upper Mann Creek Rd and Chicken Creek Rd, which follow the natural contours of the land. This survey provides a clear view of the complex hydrology of the area, from the headwaters of Sage Cr to the southern reaches of Monroe Cr.