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Routes
Mountain biking trails
United States
Idaho
Custer County
Sawtooth National Recreation Area

Harriman Trail

Moderate

4.8

(4615)

11,416

riders

Harriman Trail

04:41

53.9km

540m

Mountain biking

Mountain bike the moderate 33.5-mile Harriman Trail in Sawtooth National Forest, enjoying scenic views of the Big Wood River and Boulder Mou

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

14 m

Galena Lodge

Highlight • Mountain Hut

This is a great place for a stop. Refuel you energy with great food an enjoy your stay either inside in the cosy lodge or outside on the beautiful terrace. …

Tip by

2

3.74 km

Big Wood River

Highlight • River

The Big Wood River is 137 miles long and flows into the Malad River. It popular with both anglers and rafters.

Tip by

3

24.6 km

Harriman Trail

Highlight • Trail

Harriman Trail is a multi-use path that follows the Big Wood River from Galena to Wood River Campground. Enjoy river views as well as views of the Boulder Mountains.

Tip by

4

27.0 km

Wood River Campground

Highlight • Rest Area

Wood River Campground is located at 6400 ft in elevation. It is made up of 30 campsites that are first-come, first serve. This makes for a nice place to turn around or spend the night.

Tip by

B

53.9 km

End point

Parking

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Way Types & Surfaces

Way Types

51.0 km

1.51 km

901 m

287 m

137 m

102 m

Surfaces

46.9 km

4.88 km

1.66 km

300 m

137 m

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Elevation

Elevation

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Weather

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Today

Thursday 7 May

12°C

-1°C

0 %

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Max wind speed: 12.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Is the Harriman Trail suitable for beginners or families?

Yes, the Harriman Trail is considered not too difficult and is suitable for all ages and abilities, including beginners. The climbing is gradual, making it accessible for various fitness levels and a great option for families.

What is the terrain like on the trail?

The trail is primarily a gentle, multi-use, non-motorized gravel path. The surface is mostly fine gravel, though you might encounter some softer gravel spots. It's known for not having washboard sections since motorized vehicles are not permitted.

What kind of scenery can I expect along the route?

You can expect stunning views as the trail winds through wide meadows, dotted with scrub, grasses, and wildflowers. It alternates between aspen groves and evergreen stands, with the majestic Boulder Mountains and Galena Peak providing a consistent backdrop. The trail also repeatedly crosses the Big Wood River, enhancing its natural beauty.

Are there any notable points of interest or amenities along the trail?

Yes, the Galena Lodge is located along the trail and offers amenities such as a restaurant and a bike shop. The Wood River Campground is also a highlight along the route.

What is the best time of year to mountain bike the Harriman Trail?

The summer months are the most popular time for mountain biking on this trail. In the winter, the trail is groomed for Nordic skiing, so it transforms into a different kind of outdoor experience.

Where can I park and access the trailhead?

The Harriman Trail connects Galena to the North Fork Campground. You can typically find parking at either end or at various access points along the route. For specific trailhead parking, it's advisable to check local Sun Valley area resources.

Is the Harriman Trail dog-friendly?

The trail is generally shared with hikers and equestrians, and dogs are typically allowed. However, it's always best to check local regulations for specific leash requirements and any seasonal restrictions to ensure a pleasant experience for everyone.

Do I need a permit or pay an entrance fee to use the Harriman Trail in Sawtooth National Forest?

While the Harriman Trail is located within the Sawtooth National Forest, there are generally no specific permits or entrance fees required for day use of the trail itself. However, if you plan to camp or use certain developed facilities within the National Forest, fees may apply. Always check the official Visit Idaho website or the Sawtooth National Forest service for the most current information.

How long does it typically take to mountain bike the entire route?

The Komoot tour for the Harriman Trail covers approximately 53.8 kilometers (33.4 miles) with an estimated duration of around 4 hours and 41 minutes for mountain biking. This can vary based on your pace and how often you stop to enjoy the scenery.

Does the trail intersect with other paths?

Yes, the route primarily follows the Harriman Trail but also intersects with and utilizes sections of other paths like Quadrant Gulch Road, Anderson Creek Road, South Baker Creek Road, Dooley Creek Road, Butterfield Road, Cathedral Pines Road, Cherry Creek, Easley Hot Springs Road, and Lois Lane, among others.

Is cell service available along the Harriman Trail?

Riders should be aware that cell service is generally unavailable in the valley where the Harriman Trail is located, so plan accordingly for navigation and emergencies.

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