Mount Mueller Trail is a US Forest Service project just outside Olympic National Park, near the west end of Lake Crescent along the main US Highway 101.
The trail is a loop from its Mount Mueller Trailhead. The main attraction is a high, sharp, forested ridge (with Mount Mueller itself about midway). The other side of the loop runs along the valley floor of the Sol Duc River, a few tenths of a mile back off the highway, through classic valley-floor rainforest . US 101 runs right down the Sol Duc valley for miles, almost to the town of Forks.