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France
New Aquitaine
Oloron-Sainte-Marie
Aydius

Montagnon Lake – Lake Montagnon d'Iseye loop from Espace du col de Lasserre

Routes
Hiking trails & Routes
France
New Aquitaine
Oloron-Sainte-Marie
Aydius

Montagnon Lake – Lake Montagnon d'Iseye loop from Espace du col de Lasserre

Hard

5.0

(1)

25

hikers

Montagnon Lake – Lake Montagnon d'Iseye loop from Espace du col de Lasserre

10:50

28.6km

1,860m

Hiking

Hard hike. 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 26, 2026

Tips

Includes segments that may be dangerous

Parts of this route comprise highly technical, difficult, or hazardous terrain. Specialist equipment and prior experience is required.

After 13.3 km for 67 m

After 16.2 km for 67 m

Waypoints

A

Start point

Parking

Get Directions
1

13.1 km

L'Escala

Highlight • Summit

2

13.4 km

Montagnon Lake

Highlight • Lake

Superb view, well deserved because the path is difficult to reach it!

Translated by Google •

Tip by

3

14.3 km

Mardas

Highlight • Summit

4

14.6 km

Lake Montagnon d'Iseye

Highlight • Lake

Great tour (we went off-road at the end but you have the possibility to follow the path 👌)
It goes up sharp, it goes down the same if you go …

Translated by Google •

Tip by

5

14.8 km

Montagnon d'Iseye (2,173 m)

Highlight • Other

B

28.6 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

21.3 km

3.86 km

2.61 km

740 m

135 m

Surfaces

23.7 km

4.04 km

740 m

135 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 (2,130 m)

Lowest point (660 m)

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Weather

Powered by Foreca

Saturday 17 October

6°C

2°C

25 %

Additional weather tips

Max wind speed: 7.0 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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