Diablo Lake

Diablo Lake lies deep in the in the North Cascades mountain range of northern Washington State, in the Ross Lake National Recreation Area and within North Cascades National Park in Whatcom County, Washington. Mountains surround Diablo Lake, without nearby cities and only a few tiny villages and towns. Diablo and Newhalem, Washington, are on the western edge of Diablo Lake at the base of Sourdough Mountain. These towns are unincorporated company settlements established by Seattle City Light, home of the Skagit Hydroelectric Project on Diablo, Gorge, and Ross Lakes in the North Cascades.  More Lake Information