2020 Map of Cougar Mountain

About this map

Snoqualmie National Forest and the Green River Watershed dominate this Cascades landscape, where water management and timber access define the geography. The northern edge is anchored by Chester Morse Lake, while the southern reaches contain the Howard A Hanson Reservoir. The terrain is characterized by high peaks like Mt Lindsay and Little Mtn, which are surrounded by a dense network of forest development roads such as Nat For Dev Rd 110 and NFD 5100 Rd. These routes track the drainage basins of the Rex River and the N Fork Green River. Small alpine features, including Eagle Lake and the Tsuga Lakes, are tucked between the ridges, illustrating the transition between protected watershed areas and managed national forest lands in this high-elevation corner of King County.