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Hiking trails & Routes
United States
Idaho
Custer County
Sawtooth National Recreation Area

Marshall Lake Trail

Moderate

4.7

(7810)

8,395

hikers

Marshall Lake Trail

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

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Your route passes through protected areas

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Parking

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B

7.69 km

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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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Sunday 5 July

29°C

5°C

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Frequently Asked Questions

Where is the Marshall Lake Trail located and how do I get there?

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.

What is the terrain like on this hike?

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.

What kind of views and scenery can I expect?

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.

Is the Marshall Lake Trail suitable for beginners or families?

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.

Are dogs allowed on the trail?

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.

Do I need a permit or is there an entrance fee for the Sawtooth National Recreation Area?

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.

What is the best time of year to hike this trail?

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.

Does the trail intersect with other paths?

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.

What wildlife might I encounter?

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.

Are there any specific safety considerations for this trail?

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.

Is this an out-and-back trail or a loop?

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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