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Hiking trails & Routes
United States
Montana
Sanders County

Middle Fork Bull River Trail

Hard

4.7

(5443)

11,833

hikers

Middle Fork Bull River Trail

06:18

18.7km

900m

Hiking

Embark on the Middle Fork Bull River Trail, a challenging hike that spans 11.6 miles (18.7 km) and demands a significant elevation gain of 2960 feet (902 metres). This difficult route typically takes around 6 hours and 17 minutes to complete. As you follow the Middle Fork of the Bull…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Kootenai National Forest

Waypoints

A

Start point

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1

9.29 km

Little Ibex Lake

Highlight • Lake

Little Ibex Lake sits amidst a dramatic surrounding of tall peaks near the highest points of the Cabinets, with excellent views of Snowshoe Peak, the highest point. The lake is …

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18.7 km

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Way Types & Surfaces

Way Types

16.6 km

1.87 km

215 m

Surfaces

16.6 km

2.09 km

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Elevation

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Sunday 5 July

25°C

13°C

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Frequently Asked Questions

Where does the Middle Fork Bull River Trail start and where can I park?

The trail begins by following the Middle Fork of the Bull River drainage. Parking is typically available at the trailhead, which provides access to this remote section of the Cabinet Mountains Wilderness. It's always a good idea to check with the Cabinet Ranger Station for current access and parking conditions before you go.

Is the Middle Fork Bull River Trail dog-friendly?

Yes, this trail is known to be a popular dog-friendly hike. However, given the challenging terrain, especially if heading towards Little Ibex Lake, ensure your dog is fit for the journey and always practice responsible pet ownership, including leash laws and packing out waste.

What is the best time of year to hike the Middle Fork Bull River Trail?

The best time to hike is generally during the warmer months when snow has melted and stream crossings are less hazardous. However, peak water flow can make stream crossings challenging, particularly around the one-mile mark. It's advisable to contact the Cabinet Ranger Station for current trail conditions before planning your trip.

Do I need a permit or is there an entrance fee for this trail or Kootenai National Forest?

The Middle Fork Bull River Trail is located within the Cabinet Mountains Wilderness, which is part of the Kootenai National Forest. Generally, there are no specific permits required for day hiking or entrance fees for accessing the wilderness area itself. However, regulations can change, so it's always best to confirm with the Cabinet Ranger Station or the Kootenai National Forest service for the most up-to-date information.

What is the terrain like on this trail?

The trail primarily follows the Middle Fork of the Bull River drainage, initially through a corridor of cedars. The path is generally well-defined, but be prepared for major stream crossings around the one-mile mark, which can be hazardous during high water. The final two miles of the maintained section can be brushy. Beyond that, the unmaintained route to Little Ibex Lake involves steep, winding terrain, creek fords, and potentially boulder fields, requiring sure-footedness and alpine experience.

What are the main points of interest along the route?

The primary destination for many hikers is Little Ibex Lake, an idyllic alpine setting nestled amidst tall peaks, offering excellent views of Snowshoe Peak. The trail itself provides access to one of the widest and most remote sections of the Cabinet Mountains Wilderness, winding through scenic woodlands and montane meadows.

Is the trail suitable for families or beginners?

For the initial 6 miles to the dispersed campsite, the trail might be considered moderately challenging due to stream crossings. However, the full route to Little Ibex Lake is described as 'hard' and is not considered family-friendly for the full ascent. It requires very good fitness, sturdy shoes, and alpine experience due to significant uphill climbs, blowdown, and difficult conditions.

What kind of wildlife can I expect to see on the trail?

The trail winds through diverse flora and fauna, offering opportunities to observe various wildlife. Hikers often report seeing mountain goats, especially near Little Ibex Lake, given its alpine environment. Always maintain a respectful distance and do not feed wild animals.

What should I consider or bring before hiking this trail?

Given the trail's difficulty, especially if heading to Little Ibex Lake, you should have very good fitness, sturdy shoes, and potentially alpine experience. Be prepared for challenging stream crossings and brushy sections. Always carry sufficient water, navigation tools, and appropriate gear for changing mountain weather. It's highly recommended to contact the Cabinet Ranger Station for current trail conditions before embarking.

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

The Middle Fork Bull River Trail is primarily an out-and-back trail. You follow the same path in and out. While unmaintained trails continue beyond the main route, they typically lead to specific destinations like Little Ibex Lake, requiring you to return the way you came.

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