The Sourdough Mountains, also called Sourdough Ridge,[1] is a mountain ridge on the northeast side of Mount Rainier in Mount Rainier National Park, Washington, United States. The range forms an L-shape, starting at Mount Fremont, running east to Dege Peak, turning north to Slide Mountain.
The ridge is a popular hiking destination, due to the excellent view of Mount Rainier and its proximity to roads and the Sunrise Visitor Center.
46°55′17″N 121°36′47″W / 46.92139°N 121.61306°W