Sluiskin Mountain is a prominent pair of summits located in Mount Rainier National Park in Pierce County of Washington state. It is situated northwest of Burroughs Mountain and is part of the Cascade Range. The higher rocky peak is known as The Chief (7026 ft), and the second peak to the west is known as The Squaw (6960+ ft). West of The Squaw are pinnacles called The Papooses. Sluiskin was the native American guide who assisted with the first successful ascent of Mount Rainier by Hazard Stevens and P. B. Van Trump in 1870. Sluiskin Falls within the park also honors him.