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France
Occitania
Saint-Girons
Biert

Port de Lers – Col de l'Agnes loop from Biert

Routes
Bike touring routes & trails
France
Occitania
Saint-Girons
Biert

Port de Lers – Col de l'Agnes loop from Biert

Expert

11

riders

Port de Lers – Col de l'Agnes loop from Biert

11:18

164km

2,860m

Expert bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: October 16, 2025

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Waypoints

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Start point

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1

9.32 km

Mur de Péguère Climb

Highlight • Climb

With 18% in the climb in places, the road to the Col de Péguère lives up to its nickname of wall. It's a real challenge, even for experienced cyclists. In …

Translated by Google •

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2

15.9 km

Col de Port

Highlight • Mountain Pass

Nice port with sloping sections with 2 figures going up from Tarascon.

Translated by Google •

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3

59.6 km

Port de Lers

Highlight • Mountain Pass

With a good 800 meters difference in altitude from Vicdessos, the Port de Lers is not a giant among the Pyrenees passes, but is still very pleasant to drive thanks …

Translated by Google •

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4

63.9 km

5

64.5 km

Vue de l'étang de Lers depuis l'est

Highlight • Other

Peaceful fishing pond in the middle of a large pastoral area.

Translated by Google •

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6

68.2 km

Col de l'Agnes

Highlight • Mountain Pass

Superb pass in the middle of the pastures that I had the misfortune to do in bad weather.
The surface is good for the descent, you just have to watch out for the cows.

Translated by Google •

Tip by

7

96.2 km

Seix

Highlight • Settlement

A nice town to visit. Great and very scenic with a river flowing through the city.

Tip by

8

101 km

Lit du Salat

Lake

9

127 km

Castillon-en-Couserans

Highlight • Other

Nice place on the Lez, unfortunately no view of the mountain chapel from this point.
More information: de.wikipedia.org/wiki/Castillon-en-Couserans?wprov=sfla1

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10

137 km

Lit du Lez

Lake

B

164 km

End point

Bus stop

Way Types & Surfaces

Way Types

155 km

5.10 km

2.88 km

1.12 km

470 m

Surfaces

150 km

13.1 km

841 m

114 m

< 100 m

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Elevation

Elevation

Highest point (1,560 m)

Lowest point (390 m)

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Monday 27 October

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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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Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
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Intermediate
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Expert
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How to understand each route’s difficulty level

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Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
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Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

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Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
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Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
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Expert
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Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
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Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
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Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
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Expert
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Easy
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Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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Intermediate
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Expert
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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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