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Mountain biking trails

La Sía Pass – Collado de Asón loop from Arredondo

Routes

Mountain biking trails

La Sía Pass – Collado de Asón loop from Arredondo

Hard

riders

La Sía Pass – Collado de Asón loop from Arredondo

04:09

50.9km

1,480m

Mountain biking

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: May 11, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parque Natural de los Collados del Asón

Waypoints

Start point

Parking

Get Directions

2.71 km

Cubera Cave

Highlight • Cave

The Cubera cave is located at kilometer 2.8 of the road that goes from Arredondo to La Sia and its mouth is at the same level as the road and …

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9.03 km

View of the Asón Waterfall from Mirador del Nacimiento del Asón

Highlight • Viewpoint

In each horseshoe of the road you will have a panoramic point towards the imposing waterfall of more than 70 meters that physically marks the source of the Asón river. …

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11.3 km

Collados del Asón Natural Park Parking Area

Highlight • Parking

From here the main routes of the Collados del Asón Natural Park begin. This car park is usually full on weekends and you can also park on the other side of the road

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20.6 km

Viewpoint of Portillo de la Sía

Highlight • Viewpoint

Meters before reaching the Port or Portillo de la Sía, at 1,200 m. altitude, we find the Mirador, from where we have impressive views of the Soba Valley.

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20.7 km

La Sía Pass

Highlight • Mountain Pass

very windy, wrap up well

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25.3 km

Picón Blanco Summit and Abandoned Military Base

Highlight • Summit

Hard port compared to its neighbors in the valley. Long slopes greater than 10%

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25.4 km

Picón Blanco

Highlight • Mountain Pass

El Picón Blanco is a well-known mountain pass, very popular among road cyclists, although it is gaining popularity among donkey lovers, since it can be reached by a forest track …

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Tip by

38.5 km

The Collado de Asón is an 11km section with a drop of 530m and an average gradient of 4.81%. The asphalt is perfect, with wooden fences on the curves, horizontal marking on the margins, etc. The traffic is light.

Translated by Google •

Tip by

50.9 km

End point

Parking

Way Types & Surfaces

Way Types

50.0 km

502 m

289 m

176 m

Surfaces

50.2 km

289 m

270 m

215 m

< 100 m

Elevation

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

Highest point (1,490 m)

Lowest point (160 m)

Weather

Sunday 17 May

17°C

7°C

3 %

Additional weather tips

Max wind speed: 10.0 km/h

to get more detailed weather forecasts along your route

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

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La Sía Pass – Collado de Asón loop from Arredondo

Cubera Cave

View of the Asón Waterfall from Mirador del Nacimiento del Asón

Collados del Asón Natural Park Parking Area

Viewpoint of Portillo de la Sía

La Sía Pass

Picón Blanco Summit and Abandoned Military Base

Picón Blanco

Collado de Asón

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