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Routes
Road cycling routes
Spain
Santander
Cantabria
Ason
Ruesga

La Sía Pass – Collado de Asón loop from Ruesga

Routes
Road cycling routes
Spain
Santander
Cantabria
Ason
Ruesga

La Sía Pass – Collado de Asón loop from Ruesga

Hard

77

riders

La Sía Pass – Collado de Asón loop from Ruesga

03:09

52.7km

1,350m

Road cycling

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is right next to a parking lot.

Last updated: August 16, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parque Natural de los Collados del Asón

Waypoints

A

Start point

Parking

Get Directions
1

2.01 km

Esquileña Park and Asón River

Highlight • River

Nice park next to the Asón river. It is the perfect place to relax and cool off in the summer after a long ride on the bike.

Translated by Google •

Tip by

2

2.70 km

Iglesia de Riva

Highlight • Religious Site

3

14.8 km

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. …

Translated by Google •

Tip by

4

26.3 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.

Translated by Google •

Tip by

5

26.4 km

La Sía Pass

Highlight • Mountain Pass

very windy, wrap up well

Translated by Google •

Tip by

6

27.7 km

Impressive viewpoint ideal for resting before attacking the last two ramps of the port of El Portillo del La Sía. Grazing cows and mountains, you couldn't ask for more.

Translated by Google •

Tip by

7

34.9 km

Collado de Asón

Highlight (Segment) • Mountain Pass

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

B

52.7 km

End point

Parking

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Way Types & Surfaces

Way Types

51.6 km

1.17 km

Surfaces

51.5 km

1.33 km

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Elevation

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

Highest point (1,220 m)

Lowest point (130 m)

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Weather

Powered by Foreca

Sunday 8 November

21°C

13°C

72 %

Additional weather tips

There’s a fairly high chance of rain. Consider packing a waterproof jacket.

to get more detailed weather forecasts along your route

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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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