2014 Map of Lower Red Rock Lake

About this map

Lower Red Rock Lake and the marshy expanses of the Centennial Valley dominate this high-altitude landscape in the early 21st century. The map illustrates a complex drainage system where Odell Cr and Red Rock Creek feed into the lake, creating a network of wetlands and seasonal sloughs like Sparrow Slough. To the north, the terrain rises sharply into the Beaverhead National Forest, featuring landmarks such as Landon Ridge and Patchtop Mtn. The hydrology of the area is further defined by various named water sources, including Cayuse Spring and the W Fork Madison River. This geography supports a unique ecological corridor at the boundary of Beaverhead and Madison Counties, where Northside Centennial Rd provides the primary traverse through the valley floor, connecting the remote drainage basins of the Missouri River headwaters.