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Oros Bajo – Río Caldarés loop from Biescas

Routes

Bike touring routes & trails

Oros Bajo – Río Caldarés loop from Biescas

Hard

5.0

(1)

riders

Oros Bajo – Río Caldarés loop from Biescas

03:50

56.0km

900m

Cycling

Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route. The starting point of the route is right next to a parking lot.

Last updated: May 18, 2026

Waypoints

Start point

Parking

Get Directions

717 m

Biescas

Highlight • Settlement

Biescas is one of the largest and most important municipalities in the Pyrenees. It has 19 population centers —in addition to Biescas itself—, but at least seven of them are …

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5.67 km

Oros Bajo

Highlight • Settlement

Please note that part of this route is not GR16 as indicated and requires crossing private properties and part of it off-trail.

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12.4 km

Barranco de Arás

Highlight • Gorge

This is one of the most well-known areas of this valley, since unfortunately at the end of the 20th century there was a flood of the same river that washed …

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29.1 km

Castiecho Viewpoint

Highlight • Viewpoint

Excellent viewpoint of the Bubal reservoir and the Caldares river.

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29.9 km

Río Caldarés

Highlight • River

32.1 km

Embalse de Búbal

Lake

44.0 km

Start of Puerto del Portalet

Highlight • Mountain Pass

At the beginning of the Port of Portalet you may find yourself somewhat tense due to the climb that awaits you. Enjoy the incredible views that this area offers you …

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51.5 km

Nice gravel track

Highlight • Trail

A suitable alternative to the main road. Beware: after rain, there are numerous huge puddles.

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56.0 km

End point

Parking

Way Types & Surfaces

Way Types

26.1 km

19.4 km

5.13 km

4.48 km

861 m

< 100 m

Surfaces

49.8 km

4.45 km

1.53 km

223 m

< 100 m

Elevation

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

Highest point (1,260 m)

Lowest point (810 m)

Weather

Today

Tuesday 7 July

32°C

18°C

37 %

Additional weather tips

Max wind speed: 14.0 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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Oros Bajo – Río Caldarés loop from Biescas

Biescas

Oros Bajo

Barranco de Arás

Castiecho Viewpoint

Río Caldarés

Start of Puerto del Portalet

Nice gravel track

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