Best natural monuments around Agüero are characterized by dramatic geological formations and diverse landscapes. The region is known for its imposing reddish rock formations, such as the Mallos de Agüero, which rise significantly above the village. These structures are a result of ancient geological processes and offer unique natural features. The area provides opportunities to observe these natural landmarks and their surrounding environment.
Last updated: July 1, 2026
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As of 2017, observation was still permitted up there (in September). Of course, this may have changed in the meantime. Good luck!
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You must walk around the alleys of Agüero, and there is a magnificent view of the Mallos de Agüero.
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Spectacular reddish colored rock formations.
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The city is home to artistic treasures such as the Romanesque Church of El Salvador and the 12th-century Church of Santiago. The latter, located one kilometer from the city, has been declared a National Monument and is one of the most beautiful Romanesque temples in Aragon.
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The Mallos of the Aragonese Pre-Pyrenees were formed 65 million years ago after eroded material from the Pyrenees washed away.
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Agüero's mallos are a little less tall than those of Riglos, but even so, they are charming whims of erosion. Its contrast with the blue sky on a sunny day is simply spectacular.
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The mallos de Riglos are one of the most popular geological formations in the province of Huesca. Although there are more similar mallos in the region, these are the most impressive and also especially frequented by climbers.
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The first of several viewpoints that you will find on the Camino del Cielo route if you do it in an anti-clockwise direction.
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The region is famous for its dramatic geological formations. Key natural monuments include the imposing Peñas de Riglos, renowned for their magnitude and popularity among climbers, and the magnificent Mallos de Agüero, which dramatically frame the village. You can also find excellent panoramic views from the Colorado Viewpoint.
The natural monuments around Agüero are primarily characterized by the 'Mallos,' which are magnificent reddish rock formations. These conglomerate structures were formed approximately 65 million years ago during the Alpine orogeny, sculpted over millennia by wind and water erosion. They feature gravity-defying, needle-like and vertical shapes, with a distinctive reddish hue that intensifies with the setting sun.
Yes, beyond the iconic Mallos, the Al-Foraz cave is another notable natural monument. It's described as a huge cave offering wonderful views of the surrounding mountainous landscape, providing a different perspective on the region's geology.
The Mallos are a crucial habitat for rupicolous birds. You can observe one of Europe's largest colonies of griffon vultures, as well as bearded vultures, Egyptian vultures, peregrine falcons, and wallcreepers soaring around the rock faces. The Riglos Griffon Vulture Viewing Area is a dedicated spot for birdwatching.
The area offers a variety of outdoor activities. Hiking and climbing are very popular, especially around the Mallos. You can also find numerous routes for mountain biking and road cycling. For detailed routes and guides, explore the hiking, MTB, and cycling guides around Agüero.
Yes, there are well-marked hiking trails, such as the 360º Route around the Mallos de Agüero, which is about 4 kilometers long and provides panoramic views. Shorter and less difficult routes are also available for a more tranquil experience. You can find several options, including the 'Mallos de Agüero – Mallos of Agüero loop from Agüero' and 'Mallos of Agüero – Al-Foraz Cave loop from Agüero' in the hiking guide.
Yes, the Al-Foraz cave is easily accessible and suitable for families, offering a less strenuous exploration with wonderful views. There are also shorter and easier hiking routes around the Mallos, such as the 'Mallos of Agüero – Refugio La Cochera loop from Agüero' which is an easy 5.7 km hike, perfect for families.
The area offers stunning views year-round, but for outdoor activities like hiking and climbing, spring and autumn generally provide the most pleasant weather. The reddish hue of the Mallos is particularly striking during sunrise and sunset, making these times ideal for photography.
Excellent views of the Mallos can be enjoyed from various points. The village of Agüero itself offers a breathtaking backdrop. Additionally, the Colorado Viewpoint provides splendid panoramic views along the route, offering a great perspective on the natural monuments.
The picturesque town of Agüero, nestled at the foot of the Mallos, offers various amenities. You'll find cafes, restaurants, and accommodation options within the village, making it a convenient base for exploring the surrounding natural monuments.
While part of the larger 'Kingdom of the Mallos,' the Mallos de Agüero are known for offering a quieter and more intimate natural experience compared to the more frequented Mallos de Riglos. They are characterized by their dramatic reddish hue and unique needle-like shapes, providing a serene setting for enjoying nature and history.
Visitors frequently appreciate the sheer magnitude and unique beauty of the rock formations, especially the contrast of the reddish stones against the blue sky. The opportunity for birdwatching, particularly observing griffon vultures, is also a highlight. Many enjoy the peaceful atmosphere and the blend of natural wonder with the charm of Agüero village.


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