Three Way Peak is a 6,796 feet (2,071 m) summit located on the eastern border of Mount Rainier National Park.

Three Way Peak is situated 0.42 mi (0.68 km) north of Cupalo Rock on the crest of the Cascade Range.

[1] Three Way Peak is located in the marine west coast climate zone of western North America.

[3] Most weather fronts originating in the Pacific Ocean travel northeast toward the Cascade Mountains.

As a result, the west side of the Cascades experiences high precipitation, especially during the winter months in the form of snowfall.