121
riders
23
rides
Mountain biking in Helena-Lewis And Clark National Forest offers extensive trail systems across nearly 2.9 million acres of diverse landscapes. The region is characterized by island mountain ranges, including the Big Belt and Little Belt Mountains, with terrain ranging from open meadows and ponderosa pine forests to wooded gullies and alpine peaks. Riders can explore varied elevations and challenging routes, with many trails connecting to the renowned Continental Divide National Scenic Trail. The forest's geography provides a wide array of…
Last updated: May 11, 2026
4
riders
14.5km
01:35
410m
410m
Get ready for a moderate mountain biking adventure on the Mount Helena Ridge and Show-Me-The-Horse Loop, a route spanning 9.0 miles (14.5 km). You will experience varied terrain, from open…
3
riders
8.50km
01:03
340m
340m
Get ready for a dynamic mountain biking experience on the Entertainment and Aftershock Loop. This moderate 5.3-mile (8.5 km) route challenges you with 1100 feet (335 metres) of elevation gain,…

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28.5km
02:50
760m
760m
Tackle the Lava Mountain loop, a 17.7-mile mountain biking route in Helena-Lewis and Clark National Forest with challenging terrain.
22
riders
26.8km
03:07
890m
890m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
15
riders
21.6km
02:19
570m
570m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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Popular around Helena-Lewis And Clark National Forest
These ruins near Helena are a beautiful testament to the area's rich industrial history. Despite appearing like mining smelters, these kilns produced quicklime from the local limestone before the 20th century. They have been designated as meaningful cultural heritage sites and are listed on the National Register of Historic Places. The city's impressive historic architecture owes much to the early lime industry, and although the kilns may seem sturdy, they are very fragile, so do not climb on or inside them. However, you can always take a moment to appreciate the ruins and capture some great photos.
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Mount Ascension is just outside of Helena and gives a nice view of the surrounding natural areas as well as the city. It is a well-maintained trail and open year-round, but in the winter, watch out for ice in the shady areas.
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Lava Mountain Trail is technical enough to challenge most riders. It's also part of the Great Divide Mountain Bike Route so theoretically you could keep riding up to Alberta, Canada or down to the Mexican border.
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This trail is a true local's favorite for hiking and biking, but there may be safety in numbers as grizzly bear are known to be in the area.
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Thumbs up, you made it to the top of Mount Ascension! This is the spot to take a rest and refuel for the fun part is it's (almost) all downhill from here.
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Helena-Lewis And Clark National Forest offers a wide selection of mountain biking opportunities, with over 20 routes available on komoot. These trails cater to various skill levels, from moderate loops to more challenging technical routes.
The best conditions for mountain biking in Helena-Lewis And Clark National Forest are typically found between June and October. During these months, trails are generally clear of snow and offer optimal riding conditions.
Yes, there are a few easier options. While most trails are moderate, komoot lists 2 easy routes. For those looking for a less strenuous ride, consider exploring the extensive trail systems in the South Hills, which offer varied terrain.
Absolutely. For experienced riders seeking a challenge, the forest offers 7 difficult routes. The Lava Mountain loop, for example, is a challenging 17.7-mile trail that is part of the Great Divide Mountain Bike Route and features technical mountain terrain.
Yes, many mountain bike routes in Helena-Lewis And Clark National Forest are designed as loops. Popular examples include the Mount Helena Ridge and Show-Me-The-Horse Loop and the Entertainment and Aftershock Loop, which provide varied terrain and scenic views.
The terrain in Helena-Lewis And Clark National Forest is incredibly diverse. You can expect a mix of open meadows, dense ponderosa pine forests, wooded gullies, and even alpine peaks along the Continental Divide. Trails range from smooth singletrack to technical climbs and descents.
E-bikes are permitted on all motorized trails and roads within the Helena-Lewis and Clark National Forest, provided they adhere to regulations classifying them as motorized vehicles. However, e-bikes are prohibited in Wilderness Areas and on trails designated solely for pedestrian, bicycle, or horseback use.
The forest is rich in natural beauty and historical sites. You can encounter sections of the Continental Divide National Scenic Trail, explore the Bob Marshall Wilderness, or pass by the Lava Mountain Trail. The region also features island mountain ranges like the Big Belt Mountains and numerous rivers.
While specific family-friendly routes are not explicitly detailed, the South Hills Trail System near Helena offers approximately 50 trails with varying difficulty and length, providing options that could be suitable for families. Look for routes designated as 'easy' on komoot for a gentler experience.
The South Hills Trail System, located south of Helena, is a major hub for mountain bikers and offers numerous access points. For trails along the Continental Divide, access points are available from passes like Rogers, Flesher, Macdonald, and Stemple Pass. Specific parking details are often available on individual route pages.
Beyond mountain biking, the forest offers a wide array of outdoor activities. You can enjoy hiking, fishing, horse riding, camping, hunting, and winter sports like cross-country skiing and snowshoeing. There are also opportunities to explore historic sites and various developed campgrounds or primitive backcountry sites.
Generally, no specific permits are required for mountain biking on most trails within the Helena-Lewis and Clark National Forest. However, it's always advisable to check the latest regulations from the U.S. Forest Service, especially concerning e-bike use or access to specific wilderness areas.


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