Mount Susitna, also known as Sleeping Lady, is a 4,396-foot mountain in the U.S. state of Alaska. It is located on the west bank of the lower Susitna River, about 33 miles northwest of Anchorage, Alaska. The mountain is a prominent landmark in the Anchorage area and can be seen across the Knik Arm of the Cook Inlet from most of the city, especially at higher elevations.