Mount Skokomish Wilderness is located in the southeast corner of Olympic National Forest, just north of Lake Cushman. It consists of two long rocky ridges running roughly northeast to southwest. Elevations range from about to at the peak of Mount Skokomish on the northwest boundary. The northern ridge rises to Mounts Skokomish, Lincoln, and Cruiser, with Sawtooth Ridge, a popular rock-climbing location,stretching between Lincoln and Cruiser. The southern ridge includes the summits of Mounts Pershing, Washington, Rose, Ellinor, Jefferson Peak, and Tran Spire. Between the ridges lies the headwaters basin of the Hamma Hamma River,which gathers its waters from Mildred Lakes and tributary streams in the western portion to flow east across the Wilderness.