2023 Map of Chief Joseph Dam

About this map

Lake Pateros and Rufus Woods Lake define the northern edge of this high-plateau landscape, marking the transition between the river corridor and the rolling agricultural uplands of Douglas County. The terrain is deeply incised by a network of drainages including Foster Creek and its branches, West Foster Creek, Middle Foster Creek, and East Foster Creek. These seasonal watercourses have carved prominent geographic features like Collins Canyon and are flanked by elevated benchlands such as Sourdough Flats and Buckingham Flats. Historically significant for its water resources in an arid environment, the map identifies small upland catchments like McClain Lake, Rudd Lake, and Staver Spring. A network of rural section-line roads, including Dyer Hill Rd NE and Bridgeport Hill Rd, provides access to these remote reaches south of Bridgeport.