Hard 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: November 6, 2025

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Waypoints

Start point

Train Station

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3.77 km

Road through Bárcenas de Espinosa

Highlight • Trail

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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7.03 km

Landscape with vegetation

Highlight • Forest

Lush landscape now in fall. The road opens little by little

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9.15 km

Pasiego cabin area

Highlight • Historical Site

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

Highlight • Mountain Pass

Climbs to have trained legs

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18.1 km

Start of unpaved section

Highlight • Trail

It is here where we can find the detour to complete the return to Espinosa by an alternative path. Keep in mind that you need a gravel or mountain bike for this

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22.4 km

Portillo de La Sia

Highlight • Mountain Pass

Now populated by cattle and mist

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24.0 km

Source of the La Sía River

Highlight (Segment) • River

Good stop to see the scenery and refuel with water

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35.0 km

Torre de los Baranda, Espinosa de los Monteros

Highlight • Castle

The Torre de los Baranda, in Espinosa de los Monteros, is a stately building that reflects the historical importance of the area's lineages.

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36.2 km

End point

Train Station

Way Types & Surfaces

Way Types

35.9 km

314 m

Surfaces

35.9 km

289 m

< 100 m

Elevation

Weather

Friday 12 December

9°C

3°C

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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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Pasiego cabin area – Portillo de La Sia loop from Espinosa de los Monteros

Road through Bárcenas de Espinosa

Landscape with vegetation

Pasiego cabin area

Road to Portillo de la Sía

Start of unpaved section

Portillo de La Sia

Source of the La Sía River

Torre de los Baranda, Espinosa de los Monteros

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