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France
Alsace
Altkirch

Altenach

The best MTB trails around Altenach

4.6

(341)

1,373

riders

190

rides

Mountain bike trails around Altenach are set within the Sundgau region of Southern Alsace, France, characterized by diverse landscapes. The terrain includes forested slopes, rolling hills, and scenic valleys, with the Largue River flowing through the area. The region features a network of paths along canals and former railway lines, offering varied surfaces for mountain biking.

Best mountain bike trails around Altenach

  • The most popular mountain bike trail is Ballersdorf Viaduct – Notre Dame des moissons loop from Dannemarie,…

Last updated: May 11, 2026

4.6

(5)

22

riders

#1.

Ballersdorf Viaduct – Notre Dame des moissons loop from Dannemarie

28.0km

02:20

320m

320m

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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Moderate

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Popular around Altenach

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The most beautiful cycling routes in Sundgau

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Office de Tourisme du Sundgau

Tips from the Community

D.
March 11, 2026, Notre Dame des moissons

A statue and a few benches arranged in a circle in the woods. Perfect for a short break or snack in the shade.

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The Port fluvial de Dannemarie is no ordinary marina – it’s an unexpected oasis along the canal, where boats bob gently and herons keep watch. For cyclists, it feels like a little refuge: a place to take a break from the rhythm of your pedals and take on the rhythm of the water. Here you can refill your water bottle, stretch your legs on a bench in the shade or a little further away at the restaurant, or just watch the sun play on the surface of the canal.

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beautiful landscape, interesting locks, nice cycle path

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beautiful landscape, interesting locks, nice cycle path

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There is a nice restaurant near the harbor.

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The Porte d'Alsace boating lodge is located near Dannemarie, a central town with all the necessary shops. The lodge can accommodate around fifty boats of all sizes on three different pontoons. Drinking water and electricity are available to boaters (according to the terms and conditions defined by the local authority). A laundromat, restrooms equipped with showers, playgrounds, green spaces, and picnic tables are available to boaters and their guests.

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This pond is located in the forest. Several marked mountain bike trails pass there. The beautiful cabin with a facade made of birch logs is open permanently. It allows you to shelter there or take the snack out of the bag. A small barbecue is present.

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Frequently Asked Questions

How many mountain bike trails are available around Altenach?

You'll find nearly 200 mountain bike trails around Altenach, offering a wide range of options for different skill levels. This includes 63 easy routes, 109 moderate routes, and 16 difficult routes.

What kind of terrain can I expect on mountain bike trails in Altenach?

The terrain around Altenach is diverse, featuring forested slopes, rolling hills, and scenic valleys. Many routes follow canal towpaths, like those along the Canal du Rhône au Rhin, or former railway lines, such as the Largue Valley Cycle Path. These paths often provide well-paved, slightly undulating surfaces, while other trails venture into more natural, unpaved areas.

Are there any easy or family-friendly mountain bike trails in Altenach?

Yes, Altenach offers 63 easy mountain bike routes suitable for families or those seeking a relaxed ride. The Écluse Muehlenmatten – Canal du Rhône au Rhin loop from Dannemarie is an easy 15.6-mile (25.1 km) route that follows the canal, providing a gentle experience. The Largue Valley Cycle Path is also known for being accessible and car-free, ideal for family outings.

What are some notable landmarks or natural features I can see along the mountain bike trails?

Many trails pass by interesting sights. You can explore the Port of Dannemarie, various locks like the Valdieu-Lutran lock scale and Eglingen Lock along the Canal du Rhône au Rhin. The Nérac Ponds, a Natura 2000 site, are excellent for birdwatching, and the Maison de la Nature du Sundgau offers educational insights into the local environment.

Are there mountain bike routes that feature lakes or ponds?

Yes, the region around Altenach is dotted with several picturesque lakes and ponds. For example, the Port of Dannemarie – Étang La Belle Île loop from Dannemarie will take you past Étang La Belle Île. Other notable bodies of water include Pond and Cabin between Fulleren and Carspach, Füllhorn Pond, and Étang des Cratsch.

What do other mountain bikers enjoy most about mountain biking in Altenach?

The mountain bike trails around Altenach are highly rated by the komoot community, with an average score of 4.6 stars from over 300 reviews. Riders often praise the varied landscapes, including canal towpaths and forested areas, and the options available for different skill levels.

Are there circular mountain bike routes available?

Many of the mountain bike routes around Altenach are designed as loops, allowing you to start and finish at the same point. Examples include the popular Ballersdorf Viaduct – Notre Dame des moissons loop from Dannemarie and The being of the Lattloch – Bellefontaine Chapel loop from Dannemarie.

What is the best time of year for mountain biking in Altenach?

The Sundgau region, where Altenach is located, is pleasant for cycling through much of the year. Spring and autumn offer mild temperatures and beautiful scenery. Summer can be warm, but routes along the Canal du Rhône au Rhin benefit from rows of trees providing natural shade. Always check local weather conditions before heading out.

Can I expect to see wildlife while mountain biking in Altenach?

Yes, the diverse natural environment around Altenach, particularly near the Nérac Ponds and along the Largue Valley Cycle Path, is home to various wildlife. You might spot herons, dragonflies, and other bird species, especially in the Natura 2000 protected areas.

Are there any facilities like cafes or places to refill water along the trails?

The Maison de la Nature du Sundgau, located near the Largue Valley Cycle Path, serves as a tourist information point and offers practical amenities like picnic benches and water refills for cyclists. Some villages along the routes, such as Dannemarie, may also offer cafes or shops.

Is public transport an option for accessing mountain bike trails in Altenach?

While specific public transport options directly to trailheads may vary, the town of Dannemarie, which is a common starting point for many routes, has a train station. For detailed public transport information, it's best to consult local transport schedules for the Sundgau region.

Are there any specific rules or considerations for mountain biking with dogs in Altenach?

While the region is generally welcoming to outdoor activities, specific rules for dogs on mountain bike trails can vary. It's always advisable to keep dogs on a leash, especially in nature reserves or areas with wildlife, and to ensure you clean up after them. Check local signage for any specific restrictions.

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