4.4
(415)
1,983
hikers
113
hikes
Hiking around Fresneda De La Sierra Tirón offers access to the diverse landscapes of the Sierra de la Demanda in Burgos, Spain. The region is characterized by extensive pine, beech, and oak forests, providing varied terrain for exploration. Trails often follow the Tirón River valley, leading to natural features such as the glacial Pozo Negro lagoon and the source of the river. The area also includes challenging ascents to peaks like Pico San Millán, the highest point in Burgos province.
…Last updated: July 9, 2026
4.1
(9)
27
hikers
12.2km
03:43
420m
420m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.0
(1)
23
hikers
16.4km
05:59
1,010m
1,010m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.0
(1)
13
hikers
5.94km
02:04
320m
320m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(4)
17
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(2)
14
hikers
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Popular around Fresneda De La Sierra Tirón
Pozo Negro is a glacial lake located at an altitude of 1,760 meters in the Sierra de la Demanda, within the Fresneda area of the Sierra Tirón. It is an isolated and difficult-to-access spot, making it a very attractive spot for hikers seeking unspoiled nature. Its cold, dark waters, protected by Otero Peak, are the source of the Tirón River and are home to unique species such as the endemic palmate newt. The route to the lake, from the Tres Aguas refuge, takes more than three hours, passing through beech forests and high mountain areas. Therefore, it is advisable to wear good footwear, and bring plenty of food and water.
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Romanesque church dating back to the 12th century on the outskirts of Valgañón, a town in the Sierra de la Demanda near Ezcaray. A great stop to get water on the way up to the top of Pradilla.
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With the mountain route you can go up from Fresneda, reach the Pozo Negro (durillo), and from there to the Cruz de la Demanda, returning to Fresneda by road and passing through the top of La Pradilla.
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Visit to the ancient yew tree.
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High mountain peak that is 1,855 meters high, located in the Sierra de la Demanda, right on the border between Castilla y León and La Rioja. A nice place to take a break and enjoy the natural beauty around you.
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This church, reddish in color due to the limestone, dates from the 13th century and is Romanesque in style. It is one of the Rioja jewels belonging to this period. Water flows from the three springs from one of the most important aquifers in La Rioja. Water permeates through the sandstone, storing water throughout the year.
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I am not at all religious and less a believer, but I thought it was a very interesting visit and above all the person who teaches it, who lives it, has a good job of documentation and archives of more than 10 centuries. Very nice historical anecdotes.
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There are over 110 hiking routes in the Fresneda De La Sierra Tirón area, catering to various skill levels. This includes 16 easy, 67 moderate, and 28 difficult trails, ensuring options for every hiker.
The terrain around Fresneda De La Sierra Tirón is diverse, featuring mountainous landscapes, dense pine, beech, and oak forests, and river valleys. You'll find trails that follow the Tirón River, lead to glacial lagoons, and ascend to high peaks within the Sierra de la Demanda.
Yes, the region is known for its beautiful water features. The challenging Pozo Negro Lagoon – Chapatales Waterfall loop from Refugio Forestal Tres Aguas is a difficult 16.4 km route that takes you to a glacial lagoon and a waterfall. The Tirón River valley also features small waterfalls surrounded by ferns and moss.
Hikers can explore several natural landmarks. The glacial Pozo Negro lagoon is a significant highlight. For those seeking a challenge, Pico San Millán (Torruco) is the highest point in Burgos province. Additionally, you can visit El Tejo de Fresneda, an ancient yew tree with an impressive perimeter of over 7 meters.
While specific 'family-friendly' routes are not detailed, the area offers 16 easy trails that are generally suitable for families. These routes typically have less elevation gain and shorter distances, making them more accessible for children and those new to hiking. Look for routes marked as 'easy' on komoot for suitable options.
The diverse forests, including beech groves, suggest that spring and autumn would be particularly scenic, offering vibrant foliage. Summer provides warmer weather for higher altitude trails, while winter might bring snow to the higher peaks, requiring appropriate gear and experience.
Yes, many routes in the area are designed as loops. For example, the moderate Holly forest loop from Alto de Pradilla is a 12.2 km circular trail. Another option is the Holly forest loop from Valgañón, a shorter 5.9 km moderate loop.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 380 reviews. Hikers frequently praise the diverse landscapes, including the extensive forests and the challenging yet rewarding ascents to peaks and glacial lagoons. The variety of trails for different skill levels is also a common highlight.
Absolutely. For experienced hikers, the region offers 28 difficult trails. A notable challenging route is the Pozo Negro Lagoon – Chapatales Waterfall loop from Refugio Forestal Tres Aguas, which is 16.4 km long with over 1000 meters of elevation gain. Another difficult option is the Pozo Negro Ravine – Pozo Negro Lagoon loop from Refugio Forestal Tres Aguas, covering 14.1 km with over 900 meters of ascent.
While specific regulations for dogs on trails are not provided, the natural environment of the Sierra de la Demanda generally welcomes dogs. It is always advisable to keep dogs on a leash, especially in areas with wildlife, and to follow local signage regarding pet policies.
Yes, several routes traverse or offer views of mountain passes. The moderate Cruz de la Demanda Pass – Pozo Negro Lagoon loop from Collado Cruz de la Demanda is a 10.08 km route that includes the Cruz de la Demanda Pass. Other notable passes in the area include Alto de Pradilla and Puerto del Manquillo.
The rich forests and natural habitats of the Sierra de la Demanda support a variety of wildlife. Hikers might encounter deer, roe deer, and wild boar. The isolated Pozo Negro lagoon is also home to unique species like the endemic palmate newt.


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