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Running trails & routes

View of the By Basin – Fenêtre de Durand loop from Ollomont

Running trails & routes

View of the By Basin – Fenêtre de Durand loop from Ollomont

Hard

20

runners

View of the By Basin – Fenêtre de Durand loop from Ollomont

05:22

32.3km

1,220m

Running

Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.

Last updated: August 27, 2026

Waypoints

A

Start point

Parking

1

43 m

Beautiful lake!

Highlight • Lake

Great spot to take a break and enjoy the view & reflections. There's picnic benches and possibly even a charging point...

Tip by

2

9.36 km

Casa Luigi Einaudi

Highlight • Historical Site

Located at about 2,000 meters above sea level in the picturesque By basin, this historic stone dwelling offers you a stop of great cultural value along the trails of Valpelline. …

Showing Translation

Tip by

3

10.2 km

View of the By Basin

Highlight • Viewpoint

Nice view of the reservoir, the valley and the mountains.

Translated by Google •

Tip by

4

13.1 km

Alpine-style cycling trail

Highlight (Segment) • Trail

The trail is very technical and at high altitude, so in some sections you'll need to dismount and carry your bike. Recommended only for experienced hikers.

Translated by Google •

Tip by

5

15.9 km

Fenêtre de Durand

Highlight • Mountain Pass

The border of Switzerland and Italy. Epic views over the glacier d’Otemma and well worth the 1-hour hike-a-bike to the pass.

Tip by

6

24.1 km

Ru de By

Highlight (Segment) • River

The Ru de By is a charming stream well known in the area because of the path that runs alongside it. Follow the water, you're sure to be on the right path.

Translated by Google •

Tip by

B

32.3 km

End point

Parking

Way Types & Surfaces

Way Types

16.4 km

15.8 km

< 100 m

Surfaces

16.3 km

10.2 km

4.96 km

440 m

288 m

< 100 m

< 100 m

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Elevation

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

Highest point (2,790 m)

Lowest point (1,940 m)

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Weather

Powered by Foreca

Saturday 10 October

15°C

6°C

0 %

Additional weather tips

Max wind speed: 5.0 km/h

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