Best natural monuments around Casillas, Ávila, Spain, are situated within the Central System, offering a varied landscape for exploration. This region features significant mountain passes, such as Puerto de Casillas, which provide panoramic views of protected natural areas like the Valle de Iruelas. The natural environment includes high-altitude hills, ancient forests, and gorges with waterfalls, making it a notable destination for outdoor activities.
Last updated: July 1, 2026
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Los Toros de Guisando are a set of zoomorphic sculptures of Vettonian origin, carved in granite between the 4th and 2nd centuries BC. They probably represent bulls or verracos and were linked to rituals for the protection of livestock and the delimitation of territory.
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phenomenal
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A nice climb from the El Burguillo reservoir. The first part is asphalt in very good condition (as of November 1, 2025), and the second part is a dirt track, also in very good condition. It's a demanding climb; the asphalt section offers some flatter sections, but the dirt track is practically a continuous gradient of around 10%.
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A must-see if you go to the El Tiemblo chestnut grove.
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The arrangement of the sculptures is interesting: they are side by side, forming a line in a north-south direction and all of them facing west, to the hill of Cerro de Guisando, from which they receive their name. The Tórtolas stream, which is located behind it, marks the natural border between the communities of Castilla y León and Madrid.
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It is a place where you can admire stone carvings that are more than 2,000 years old that were recovered and taken there so that they can be contemplated by visitors who wish to do so. You have to pay a small entrance fee of €2 to ensure the conservation and maintenance of the sculptures, but it is definitely worth it. These are 4 bulls carved in stone from the 3rd century BC. next to an old inn or inn called "Juradera" in which the pact was signed between Enrique IV and his sister Isabel.
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The Guisando Bulls are an outstanding example of Vetona sculpture, a pre-Roman art, found in the municipality of El Tiemblo, in the province of Ávila. These are four large granite statues that represent bulls. These sculptures date from the 6th or 3rd century BC. and they are considered one of the most outstanding examples of Veton sculpture, associated with Celtic culture. Although their exact meaning is unclear, it is believed that the Guisando Bulls could have a symbolic or religious purpose related to fertility and the protection of livestock. There has also been speculation about its possible connection with ritual ceremonies.
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A true Ent
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Visitors frequently enjoy the Puerto de Casillas – Entrance to the Valle de Iruelas Nature Reserve, known for its panoramic views and as a gateway to the Valle de Iruelas. Another highly regarded spot is El Abuelo Chestnut Tree (Castañar de El Tiemblo), an impressive ancient tree that draws many visitors.
Yes, several natural monuments are suitable for families. El Abuelo Chestnut Tree (Castañar de El Tiemblo) and The Grand Chestnut of El Tiemblo are both considered family-friendly, offering a chance to see ancient trees. Additionally, Charca de los Cangrejos is a pond with easy access, making it a pleasant spot for families.
The region around Casillas offers a diverse range of natural features. You can explore mountain passes like the Puerto de Casillas with expansive vistas, ancient chestnut and oak forests, high-altitude hills such as Cerro de la Escusa, and picturesque waterfalls in areas like El Camocho (Cascadas de la Lanchuela). The landscape also includes serene alpine meadows and the tranquil Charca de los Cangrejos.
The natural monuments around Casillas are excellent starting points for various outdoor activities. You can find numerous running trails, including routes like 'Alto del Mirlo (Pico Casillas) loop from Casillas' and 'Charca de los Cangrejos – Mirador de la Senda de Pinosa loop from Sotillo de la Adrada'. For more options, explore the Running Trails around Casillas guide.
Absolutely. The Puerto de Casillas is a key area for hiking, offering trails to spots like Pozo de la Nieve, Canto del Berrueco, and Cerro de la Escusa. The ascent to Puerto de Casillas is considered one of the most essential hiking routes in the Central System. You can find more hiking opportunities within the Running Trails around Casillas guide, which includes routes suitable for walking.
The region's varied landscape, including chestnut and oak forests, makes it ideal for visiting throughout the year. Autumn offers spectacular changing colors, especially around the chestnut groves. Spring brings lush greenery and pleasant temperatures for hiking. Even winter can be beautiful, particularly for those interested in snow-covered landscapes at higher elevations like Cerro de la Escusa, though appropriate gear is essential.
While primarily focused on natural beauty, the area also features historical elements. The Toros de Guisando, located near El Tiemblo, are ancient stone carvings dating back to the 3rd century BC. These pre-Roman sculptures offer a glimpse into the region's rich past and are considered an outstanding example of Vetona sculpture.
Visitors particularly appreciate the breathtaking panoramic views from elevated points like Puerto de Casillas, which overlooks the Valle de Iruelas Natural Reserve and the Burguillo Reservoir. The grandeur of ancient trees like El Abuelo Chestnut Tree also leaves a lasting impression. The diverse landscapes, from mountain passes to tranquil ponds, are highly valued for photography and outdoor enjoyment.
Yes, for more advanced hikers, routes that ascend to higher elevations like Cerro de la Escusa (reaching 1,960 meters) from Puerto de Casillas offer challenging terrain and impressive views. The 'Alto del Mirlo (Pico Casillas) loop from Casillas' is a difficult 22.1 km running trail that can also be undertaken as an advanced hike. You can find more challenging routes in the Running Trails around Casillas guide.
Many trails in the region, especially those starting from key points like Puerto de Casillas, are designed as circular routes, allowing you to experience diverse landscapes without retracing your steps. For example, the 'Alto del Mirlo (Pico Casillas) – Pozo de la Nieve Shelter loop from Puerto de Casillas' is an 8.2 km difficult running trail that forms a loop. Check the Running Trails around Casillas guide for more detailed circular route options.
The Valle de Iruelas Natural Reserve, accessible via Puerto de Casillas, is a significant ecological area. It is home to a large population of black vultures, and you might also spot imperial eagles, golden eagles, and other species of wildlife within its black pine, oak, holm oak, and juniper forests.
Beyond the well-known spots, the Cascadas de la Lanchuela in the El Camocho area, north of Casillas, can be considered a hidden gem. This rugged terrain features several picturesque waterfalls, some reaching up to 15 meters, offering a dramatic and refreshing natural spectacle for those willing to explore.


Extend your search for the best caves by checking out these guides of the top ones around Casillas: