Mount Wilder is a 5,939-foot (1,810-metre) mountain summit located near the head of the Elwha Valley, deep within Olympic National Park in Jefferson County of Washington state. Part of the Olympic Mountains, Wilder represents the southernmost peak of the Bailey Range. It is situated 8.7 miles east-southeast of Mount Olympus, and is set within the Daniel J. Evans Wilderness. Neighbors include line parent Mount Dana, 2.3 miles (3.7 km) to the northeast, and Mount Seattle rises 3.7 miles to the southwest. The headwaters of the Goldie River form on the south slope of the mountain, and precipitation runoff from the mountain drains into Goldie River and other tributaries of the Elwha River. Topographic relief is significant as the south aspect of the peak rises nearly 3,800 feet (1,160 m) in les