2014 Map of Cougar Reservoir

About this map

The Cougar Reservoir and the drainage of the South Fork McKenzie River dominate this portion of the Willamette National Forest in the Cascade Range. This 2014 survey details the complex network of forest development roads, such as Natl Forest Develop Road 1994 RD, that navigate the steep elevations between McLennan Mtn and Hardy Ridge. The map highlights the intersection of water and recreation, noting the location of Terwilliger Hot Spring along the reservoir's western edge and the isolated Hidden Lake tucked behind the ridges. Notable peaks like Yankee Mtn, Tipsoo Butte, and Lowder Mtn define the horizon, while numerous tributaries including French Pete Cr and Walker Cr feed into the river system. The landscape is defined by its dramatic relief, from the low-lying reservoir floor to the sharp heights of Sawtooth Ridge.