Expert road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 7, 2025

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The surface for a segment of your route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

215 m in total

Waypoints

Start point

Train Station

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14.0 km

Climbing to Maíllo de Cubilla

Beautiful road that goes from Obarenes to La Molina del Portillo de Busto and offers impressive views of the surrounding plains.

Translated by Google •

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33.0 km

Frías Bridge

Alongside the bridge is a great place for a swim.

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34.3 km

Frías Castle

Beautiful town located on the border between the two provinces and characterized by the castle at the top. From afar you can already see the situation of the nucleus which looks like a postcard.

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36.8 km

Ermita de Nuestra Señora de la Peña and Stone Bridge, Tobera

47.4 km

Portillo de Busto

Mountain pass that starts right in the lower town of La Aldea and is located just over three kilometers in a southerly direction!

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65.7 km

End point

Train Station

Way Types & Surfaces

Way Types

59.8 km

3.01 km

2.83 km

< 100 m

Surfaces

60.1 km

4.99 km

413 m

175 m

Elevation

Highest point (1,000 m)

Lowest point (520 m)

Weather

Today

Tuesday 7 October

27°C

9°C

0 %

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.

Frías Bridge – Portillo de Busto loop from Pancorbo

Climbing to Maíllo de Cubilla

Frías Bridge

Frías Castle

Ermita de Nuestra Señora de la Peña and Stone Bridge, Tobera

Portillo de Busto

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