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: August 12, 2025

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Waypoints

Start point

Train Station

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3.77 km

Road through Bárcenas de Espinosa

On the way it is usual to run into these herds and farmers with whom you can also share a little while

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9.15 km

Pasiego cabin area

Historically, the Pasiegas cabins are small constructions used in the transhumance of cattle, which in the lower part of them served as a stable and above as a house

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11.0 km

Road to Portillo de la Sía

Climbs to have trained legs

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13.7 km

Portillo de La Sia

Now populated by cattle and mist

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21.7 km

Grazing area

Stopping to watch them graze is not a bad option. Many times we will see the ranchers of the area with them

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32.1 km

Portillo de Lunada

Mountain Pass

49.9 km

Old signage at the Estacas de Trueba pass

Ancient signage made by hand with Castilian stone

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57.3 km

Scenic road

For all those who want to change course;)

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58.5 km

The views from here towards the continuation of the valley

From here we can start to see part of the Cantabrian Mountains

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68.7 km

End point

Train Station

Way Types & Surfaces

Way Types

67.9 km

847 m

Surfaces

68.2 km

551 m

Elevation

Weather

Today

Thursday 9 October

17°C

7°C

10 %

If you start your activity now...

Max wind speed: 4.0 km/h

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

Portillo de La Sia – Grazing area loop from Espinosa de los Monteros

Road through Bárcenas de Espinosa

Pasiego cabin area

Road to Portillo de la Sía

Portillo de La Sia

Grazing area

Old signage at the Estacas de Trueba pass

Scenic road

The views from here towards the continuation of the valley

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