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Routes
Mountain biking trails
Spain
Castile and León
Burgos
Merindades
Valle De Tobalina

Trail along the GR 99 – Presa de Sobrón Road loop from Embalse de Sobrón

Routes
Mountain biking trails
Spain
Castile and León
Burgos
Merindades
Valle De Tobalina

Trail along the GR 99 – Presa de Sobrón Road loop from Embalse de Sobrón

Hard

5.0

(1)

13

riders

Trail along the GR 99 – Presa de Sobrón Road loop from Embalse de Sobrón

03:19

24.5km

1,150m

Mountain biking

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. The starting point of the route is right next to a parking lot.

Last updated: March 1, 2026

Tips

Includes very steep uphill segments

You may need to push your bike.

After 16.9 km for 1.12 km

After 18.8 km for 580 m

Waypoints

A

Start point

Parking

Get Directions

1

7.75 km

View of the Ebro River from Mirador de San Martín de Don

Highlight • Viewpoint

The San Martín de Don viewpoint is located on a cliff that is the border between Castilla y León and the Basque Country. From the cliff you can see a …

Translated by Google •

Tip by

2

11.2 km

Trail along the GR 99

Highlight • Trail

This section of the Ebro natural path is a beautiful path through the forest. The path is flanked by pine, oak and boxwood. At some points the vegetation opens up and reveals spectacular views of the limestone cliffs.

Translated by Google •

Tip by

3

13.3 km

Presa de Sobrón Road

Highlight • River

Beautiful road that is located next to the Sobrón Dam and that follows the waters of the Ebro river itself in these areas that form the border between the two provinces.

Translated by Google •

Tip by

B

24.5 km

End point

Parking

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Way Types & Surfaces

Way Types

19.7 km

2.42 km

2.29 km

116 m

Surfaces

20.6 km

2.42 km

1.24 km

191 m

116 m

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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 (1,080 m)

Lowest point (510 m)

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Weather

Powered by Foreca

Thursday 21 May

29°C

11°C

0 %

Additional weather tips

Max wind speed: 6.0 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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Nearby routes

Moderate

5

Valle de Tobalina - circular from Frías - Las Merindades

03:26h

40.7km

500m

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