Ruth Mountain is a 7,115 ft (2,170 m) Skagit Range summit located two miles south of Hannegan Pass in the North Cascades of Washington state. The name honors Ruth Cleveland, daughter of President Grover Cleveland. This mountain's name was officially adopted in 1952 by the United States Board on Geographic Names. Ruth Mountain is situated on the shared border of North Cascades National Park and the Mount Baker Wilderness, which is part of the Mount Baker-Snoqualmie National Forest. The summit offers views of Mount Shuksan, East Nooksack Glacier, Seahpo Peak, Nooksack Tower, Icy Peak, Mount Sefrit, Mineral Mountain, and the Picket Range. The melting and receding Ruth Glacier on the north slope of Ruth creates the headwaters for the Chilliwack River. Precipitation runoff also finds its way into the Nooksack and Baker Rivers.

Mount Baker Wilderness is a 119,989-acre (48,558 ha) wilderness area within the Mount Baker-Snoqualmie National Forest in the western Cascade Range of northern Washington state. Its eastern border is shared with the boundary of the Stephen Mather Wilderness and North Cascades National Park for a distance of 40 miles. The wilderness extends from State Route 20 north to the Canada–US border. On the west, it is bounded by the foothills of the Puget Sound lowlands.