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Italy

Aosta Valley

Doues

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

Routes

Running trails & routes

Italy

Aosta Valley

Doues

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

Hard

runners

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

05:16

31.9km

1,150m

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: May 29, 2026

Waypoints

Start point

Parking

Get Directions

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

9.84 km

View of the By Basin

Highlight • Viewpoint

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

Translated by Google •

Tip by

12.7 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

15.5 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

23.7 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

31.9 km

End point

Parking

Way Types & Surfaces

Way Types

16.4 km

15.4 km

< 100 m

Surfaces

17.5 km

8.61 km

4.96 km

440 m

288 m

< 100 m

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)

Weather

Friday 26 June

29°C

17°C

78 %

Additional weather tips

Max wind speed: 10.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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

Beautiful lake!

View of the By Basin

Alpine-style cycling trail

Fenêtre de Durand

Ru de By

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