4.7
(7810)
8,395
hikers
02:56
7.69km
450m
Hiking
Hike the moderate Marshall Lake Trail in Idaho's Sawtooth Mountains, a 4.8-mile route with 1462 feet of gain to an alpine lake.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
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Waypoints
Start point
Parking
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7.69 km
End point
Way Types & Surfaces
Way Types
6.40 km
1.25 km
< 100 m
Surfaces
6.60 km
1.04 km
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Elevation
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This route was planned by komoot.
The primary Marshall Lake Trail featured here is located in the Sawtooth Mountains of Idaho, within the Sawtooth National Recreation Area. It's typically accessed from the Redfish Lake Trailhead. You'll find ample parking available at the trailhead.
The trail offers diverse terrain, winding through aspen groves, spruce-fir forests, and open meadows. You'll traverse moraines, encounter rocky sections, and experience areas characterized by steep headwalls and talus slopes. The path includes a steady climb along a ridge and a descent into the lake basin.
Hikers are treated to stunning ridgeline vistas of the Sawtooth Mountains, including prominent peaks like Williams Peak and Thompson Peak, as well as views of the adjacent White Cloud Mountains. You'll also see subalpine meadows with sedge-dominated wetlands, and the destination is a picturesque small alpine lake nestled in a rugged, glaciated basin.
This trail is generally considered moderate to strenuous due to its significant elevation gain (1,850 to 1,942 feet) and length (9.4 to 10.25 miles round trip). While experienced families might enjoy it, beginners may find it challenging. It's best suited for hikers with some experience and good physical condition.
Yes, dogs are generally allowed on the Marshall Lake Trail, as it is part of the Sawtooth Wilderness. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all visitors. Please remember to pack out all pet waste.
While there isn't an entrance fee for the Sawtooth National Recreation Area itself, you will need a free wilderness permit for hiking in the Sawtooth Wilderness, which this trail is part of. These permits are self-issued and available at the trailhead.
The best time to hike is typically from late spring through early fall. During these seasons, you can enjoy wildflowers like Indian Paintbrush in the meadows, lush green forests, and potentially vibrant fall colors in the aspens. Always check current trail conditions before you go, especially in early season for snowmelt or late season for early snow.
Yes, the route also passes through sections of the Alpine Way Trail and the Fishhook Trail, offering connections to other areas within the Sawtooth Wilderness.
The Sawtooth Wilderness is home to diverse wildlife. While specific sightings are never guaranteed, you might spot various bird species, small mammals, and potentially larger animals like deer or elk. Always maintain a safe distance and never feed wildlife.
Given its moderate to strenuous rating and wilderness setting, it's important to be prepared. Carry plenty of water, wear appropriate hiking footwear, and bring layers of clothing as weather can change quickly. Be aware of elevation changes and rocky sections. Always inform someone of your hiking plans.
The Marshall Lake Trail in the Sawtooth Mountains is primarily an out-and-back trail, leading you to Marshall Lake and then returning along the same path. The round trip is approximately 9.4 to 10.25 miles.
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