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

North Fork of the Big Wood River Trail

Moderate

4.8

(1447)

19,638

hikers

North Fork of the Big Wood River Trail

02:06

6.80km

390m

Hiking

Embark on the North Fork of the Big Wood River Trail, a moderate hiking route that guides you through dense forests, expansive meadows, and rugged mountain backdrops. You will often find yourself above the North Fork of the Big Wood River, enjoying pleasant views of the waterway as it flows.…

Last updated: April 23, 2026

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Your route passes through protected areas

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6.80 km

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Way Types & Surfaces

Way Types

6.74 km

< 100 m

Surfaces

6.73 km

< 100 m

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Elevation

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Weather

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Today

Saturday 18 July

24°C

10°C

56 %

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Max wind speed: 12.0 km/h

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Frequently Asked Questions

Where is the trailhead for the North Fork of the Big Wood River Trail, and is parking available?

The trailhead for this route is located within the Sawtooth National Forest. Parking is typically available at the trailhead, though specific details on parking capacity are not provided. It's always a good idea to arrive early, especially on weekends, to secure a spot.

Is this trail dog-friendly?

Yes, the North Fork of the Big Wood River Trail is generally dog-friendly. However, as it is located within the Hemingway-Boulders Wilderness and the Sawtooth National Forest, it's crucial to follow all wilderness regulations, which typically include keeping dogs on a leash and packing out all waste. Always check current regulations before you go.

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

The best time to hike this trail is generally from late spring through early fall. Earlier in the summer, you might experience higher water levels at creek crossings due to snowmelt, and the river will be more substantial. Later in the season, the river might be a smaller stream, and creek crossings easier. July is often a good time to see wildflowers. Consider seasonal conditions, as winter hiking would present significant challenges.

Are there any permits or fees required to hike this trail or enter the Sawtooth National Forest?

Generally, there are no specific permits or entrance fees required for day hiking the North Fork of the Big Wood River Trail or for entering the Sawtooth National Forest for recreational purposes. However, always check the official U.S. Forest Service website for the Sawtooth National Forest for the most current regulations, especially if you plan to camp overnight or engage in other activities that might require a permit.

How challenging is the North Fork of the Big Wood River Trail, and does its difficulty change along the way?

This trail is rated as moderate overall, but its difficulty increases progressively. The first two miles are considered easy with minimal elevation gain. Beyond this point, the path becomes more faint and the grades steeper, making it moderate. For those continuing to Ibex Pass, the section involves significant elevation gain and is strenuous. The total elevation gain is approximately 1,100 feet.

What kind of terrain and scenery can I expect on the trail?

You can expect diverse terrain and stunning scenery. The trail follows the North Fork of the Big Wood River, offering views of the waterway. You'll pass through dense forests, including sections with large, old cedar trees, and expansive meadows. Views open up to impressive peaks deeper into the wilderness. While generally well-maintained, some sections may have eroding paths. Numerous side trails lead down to the river.

What makes the Hemingway-Boulders Wilderness unique for hikers on this route?

The Hemingway-Boulders Wilderness, designated in 2015, offers a notable sense of solitude. Despite boasting some of Idaho's highest mountains, with twelve summits over 11,000 feet, it has only 29 miles of trail, ensuring a peaceful hiking experience. This means you'll likely encounter light traffic, even on holiday weekends, making it ideal for those seeking quiet immersion in nature.

Are there any creek crossings, and do they pose a challenge?

Yes, there are creek crossings along the trail. Their challenge level depends on the season. Later in the summer, they may be easy to navigate. However, earlier in the summer, especially due to snowmelt, water levels can be higher, potentially involving wet feet. Be prepared for varying conditions.

What kind of wildlife might I encounter on this hike?

Hikers on this route have reported the possibility of spotting wildlife such as moose. The wilderness setting also means you might encounter other native species. Always maintain a safe distance and never feed wild animals.

Is this an out-and-back trail, or are there loop options?

The North Fork of the Big Wood River Trail is primarily an out-and-back route, approximately 8 miles in length if you complete the main section. While there are no designated loop options for the entire trail, you can turn around at any point to customize your distance.

Does this route connect with other trails in the area?

Yes, the route utilizes and intersects with several other trails. You will find yourself on sections of the Upper North Fork Trail and the North Fork Trail for significant portions of the hike. It also briefly connects with the West Fork North Fork Wood River Trail and the North Fork West Pass Trail.

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