Kim Williams Trail – Clark Fork River loop from Missoula

If you're looking for a substantial touring cycling challenge right from Missoula, the Kim Williams Trail – Clark Fork River loop delivers. This difficult 25.2-mile (40.5 km) route packs in 2171 feet (662 metres) of climbing, taking around 3 hours and 32 minutes to complete. It's a rewarding ride for cyclists ready to tackle varied terrain and significant elevation.

What to expect on Kim Williams Trail – Clark Fork River loop from Missoula

The route unfolds as a dynamic journey, starting with the relatively flat Kim Williams Nature Trail, which follows an old railroad grade. You'll cycle alongside the picturesque Clark Fork River, with Mount Sentinel often towering in the background, through both forested canyon walls and open valley stretches. While some sections are smoothly paved, others transition to dirt or packed gravel, becoming narrower and bumpier further east. This varied surface means a hybrid or mountain bike is a better choice than a road bike, especially given the overall difficult rating of the loop, which includes significant elevation gain.

Planning your visit

The Kim Williams Trail is easily accessible from downtown Missoula and the University of Montana campus, connecting seamlessly with the wider Riverfront Trail system. While the Riverfront Trail system, including parts of the Kim Williams Trail, is maintained year-round, be aware that winter cycling will require specific gear due to potential icy conditions. Always check local weather before you head out.

Trail details

• Distance: 25.2 miles (40.5 km)
• Elevation gain: 2171 feet (662 metres)
• Difficulty: difficult
• Estimated time: 3 hours and 32 minutes