This trail follows the Duckabush River into The Brothers Wilderness and enters Olympic National Park at 6.7 miles. The trail enters a burned area at around the two mile mark and continues beyond Five-Mile Camp, the origin of the 2011 fire. Use caution when traveling and camping within the burned area, as there are many dead standing trees and unstable surfaces as a result of the fire.
The trail is an easy grade for 2.4 miles and becomes more difficult while climbing over Big Hump. The trail over Big Hump is steep and the tread is loose rock. The grade becomes moderate again west of Big Hump all the way to the Park boundary. There are numerous camps along the trail. There is a scenic place to rest near the river at 2.4 miles after Little Hump. The most popular camping and fishing area is at 5 mile Camp.