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Routes
Mountain biking trails
Switzerland
Zentralschweiz
Uri
Altdorf (UR)

Brunnital Bike

Hard

4.7

(18)

147

riders

Brunnital Bike

04:04

45.8km

1,220m

Mountain biking

From the train station in Altdorf, head for the Klausen Pass road, which, thanks to its asphalt, quickly takes you to the narrow entrance to the Brunni Valley. Past the old sawmill, you follow the rushing Hinterschächen stream on the only road in this wild side valley.

Fir trees, overgrown…

by

Last updated: April 17, 2025

Waypoints

A

Start point

Train Station

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1

15.5 km

Bielen Sawmill

Highlight • Monument

Right next to the only road that leads further into the Brunni Valley, you can marvel at this old sawmill, the Bielen sawmill. It dates back to 1850 and is …

Translated by Google •

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2

19.6 km

Brunnialp Inn

Highlight • Mountain Hut

At the very back of the Brunni Valley you can stop off at the Brunnialp-Beizli in the summer months. They serve simple, fine food and drinks. The view of the impressive north face of the Gross Ruchen is fabulously beautiful!

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3

22.6 km

Trogenalp

Highlight • Mountain Hut

The Trogenalp is a cozy alpine pasture in the upper Brunni valley. When the alpine pasture is in operation, the Alpine family keeps cows and pigs and runs the Alpstubli. …

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4

27.2 km

Descent Through Brunnital

Highlight (Segment) • Trail

Fantastic trail S2-S3, most of it can even be ridden comfortably, but some tricky steps are to be expected.

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B

45.8 km

End point

Train Station

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Way Types & Surfaces

Way Types

18.2 km

13.4 km

9.74 km

4.21 km

327 m

< 100 m

Surfaces

26.9 km

14.7 km

3.67 km

384 m

171 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (1,500 m)

Lowest point (450 m)

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Weather

Powered by Foreca

Friday 22 May

25°C

11°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

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Comments

March 7, 2025

From the train station in Altdorf, head for the Klausen Pass road, which, thanks to its asphalt, quickly takes you to the narrow entrance to the Brunni Valley. Past the old sawmill, you follow the rushing Hinterschächen stream on the only road in this wild side valley.



Fir trees, overgrown boulders, and

Translated by Google •

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Trail Reviews

Scott060872
October 18, 2025, Altdorf-Spiringen-Unterschächen-Brunnialp-Trogenalp retour

From Bürglen to Unterschächen, it's just under 10 km along the Klausen Pass road. Not very interesting, but it still climbs almost 600 meters. From there, the Brunni Valley is magnificent. Only rocks and mountains on three sides. Brunnialp and Trogenalp are both very nice destinations. Unfortunately, both are already closed, and I brought my food in my backpack. The view from Trogenalp is sensational. You could take the trail down from Brunnialp. Unfortunately, it was overcrowded by a trail runner, so I had to take the road again.

Translated by Google

This tour had been on my list for a while. The weather was very nice (I would have appreciated a few more clouds). I slightly modified the Schweizmobil route with komoot so I didn't have to spend too much time on the main road in the Schächental valley. The climb in the Brunnital valley is very beautiful, and past the Brunnialp-Beizli to Alp Trogen is definitely worth it. After a long climb, I stopped at the Brunnialpbeizli on the descent, which then continued on a long S1/S2 trail (very nice!). At Unterschächen, I deviated from the main road for the reasons mentioned above and ended up on a path marked on the Schweizmobil and komoot, which was really tiring (wet, slippery, moss-covered stones, rotten wood, a narrow, overgrown path, ups and downs), so I finally turned around and took the main road after all. The whole thing probably took me about an hour. On the train ride home I had the pleasure of meeting @Torsten and his wife, so the journey back was very entertaining.

Translated by Google
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