Season: Summer Only

St. Andrew’s Patrol Cabin is one of the oldest backcountry ranger stations in the park. It was intended as a temporary headquarters for rangers on patrol of the park's western boundary and the Wonderland Trail. Aspects of the cabin's log frame, rectangular design, with its steeply pitched cedar shake gable roof, saddle notch cornering, and post and beam frame front porch, were incorporated into the construction of later patrol cabins in the park.

Prior to 1920, there were very few shelters for backcountry rangers and hikers. In 1919-20, Superintendent Roger W. Toll reported the need for backcountry shelters to be placed ten to fifteen miles apart along the Wonderland Trail. Toll's system evolved into the construction of both patrol cabins and trail shelters under Superintendent O.A. Tomlinson's administration (1923-41). The St. Andrews Patrol Cabin was an early component of Superintendent Roger Toll's vision of a string of backcountry shelters to accommodate backcountry patrols and provide shelter for the hiking public; a policy that evolved and expanded under Superintendent Tomlinson's administration.

The Superintendent's annual report for fiscal year 1922 reported the construction by the National Park Service of three patrol cabins on the west side of the park at Mowich Lake, St. Andrews Creek, and at Sunset Park.

It is presently used in the summers as headquarters for backcountry rangers on patrol in Klapatche and St. Andrews Parks along the Wonderland Trail. St. Andrews Patrol Cabin is a contributing structure of the Mount Rainier National Historic Landmark District.