Overview
Stuart Peak stands at 8,562 feet above the Clark Fork Valley northeast of Missoula, the highest point readily accessible by trail from the city in the Lolo National Forest. The 12-mile round trip with 4,200 feet of gain is the defining local challenge hike for Montana's outdoor community in Missoula, done as a fitness benchmark and a genuine wilderness experience despite starting just outside the city.
The route passes through lower canyon forest, transitions through old-growth stands above 6,000 feet, breaks treeline at approximately 7,500 feet, and follows an exposed ridge to the summit. Mountain goats are occasional visitors on the upper ridge, and the view from the top surveys the Clark Fork drainage from Missoula west, the Rattlesnake Wilderness, and on clear days the Mission Mountains to the north.
The Route
Trailhead to Lower Canyon (0 to 2.0 miles)
The trail begins in mixed ponderosa and Douglas fir, climbing consistently from the first step. The lower canyon section provides shade and the first mile is well-graded. A seasonal creek at mile 1.8 is the first reliable water source and the last one before the summit. Fill here if planning to do the upper ridge without stopping.
Old-Growth Middle Section (2.0 to 4.5 miles)
The trail enters denser old-growth forest above 6,000 feet with large-diameter Engelmann spruce and subalpine fir. The climbing continues steadily with occasional switchbacks on steeper pitches. Views open briefly at several rocky outcrops. The switchback sequences in this section are the most sustained climbing of the route.
Sub-Alpine Ridge (4.5 to 5.5 miles)
Above treeline at approximately 7,500 feet, the trail follows an exposed ridgeline with broad views in multiple directions. Wind is almost constant on the ridge. The terrain becomes rocky and the trail markings thin. Cairns guide the way in places. Carry a map and know your navigation here.
Summit (6.0 miles)
The summit is open and the views are unrestricted. The Clark Fork Valley and Missoula are visible below; the Rattlesnake Wilderness drainage system spreads to the west. Descend via the same route, with care on the rocky upper ridge section.
When to Hike
July through August provides the most reliable window. Snow typically clears the upper ridge by early July. The trail is at its most comfortable on mid-week days before the afternoon heat builds in the lower canyon.
September is excellent. Cooler temperatures improve the sustained climbing, crowds thin, and early fall color appears in the aspen stands of the lower canyon.
June access may require microspikes for the upper ridge in heavy snow years. Check conditions before committing.
What to Bring
Many hikers carry 4 liters of water for this length and elevation gain, particularly in hot weather. The dry upper ridge has no water, and the descent is as demanding on fluid needs as the ascent. Lunch and high-energy snacks are standard for this all-day effort.
Wind layers are essential above 7,500 feet. Sun protection is critical on the exposed upper ridge, which has no shade. An early start (6 to 7 a.m.) allows summit time before afternoon weather builds.
Trailhead Access
The Sawmill Gulch Trailhead is northeast of Missoula on the road through the Sawmill Gulch area. The road is partially paved. No permit or fee is required (as of 2026). No restroom is present at the trailhead. Limited parking (10 to 15 vehicles) means early arrival is important on summer weekends.
Dogs are permitted but should be assessed for fitness given the 4,200-foot gain.
Nearby
Stuart Peak is the demanding option in the Missoula front range. Rattlesnake Creek Trail is the accessible counterpart for an easier outing in the Rattlesnake system. Marshall Mountain Trail offers a moderate summit experience east of Missoula. Check current trail and weather conditions using the USFS conditions guide before attempting this demanding route. Follow Leave No Trace principles on the fragile subalpine ridge terrain.