East Fork Boulder Trail (27) begins at Box Canyon Trailhead and parallels the East Fork Boulder River to Slough Creek Divide. This popular route is used to access the Lake Plateau via Rainbow Creek Trail 28, as well as the Slough Creek drainage on the Gardiner Ranger District. The trail is in good condition. Length: 9 miles. Wilderness, low difficulty, high use. Trail Begins: Box Canyon Station Trail Ends: Trail 104 Area Map: Gallatin National Forest Visitor Map USGS Map1: Mount Douglas USGS Map2: Haystack Peak Township 6S; Range 12E; Section 28
