Best natural monuments around Loarre are found in the Hoya de Huesca region, known for its diverse natural landscape. This area features a striking contrast between fertile plains and towering rock formations. The geological structures, particularly the colossal conglomerate rocks, define the natural character of the surroundings. These natural features provide a backdrop for both historical sites and outdoor activities.
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 dominated by colossal conglomerate rock formations. Key examples include the Peñas de Riglos, known for their towering, vertical walls, and the Mallos de Agüero, which are spectacular reddish-colored rock formations shaped by erosion.
Yes, the area offers various hiking trails. For instance, you can explore routes around the Peñas de Riglos, including the 'Camino del Cielo' loop. Many trails provide incredible views of the formations and the surrounding natural environment. You can find more details on running trails in the area on the Running Trails around Loarre guide.
The cliffs of natural monuments like the Mallos de Agüero and Peñas de Riglos are home to significant populations of raptors. You can often spot griffon vultures, bearded vultures, and Egyptian vultures nesting in these environments, making it an exceptional spot for birdwatching. The Riglos Griffon Vulture Viewing Area is specifically recommended for this.
While specific family-friendly trails are not detailed, the general appeal of the dramatic scenery and birdwatching opportunities at places like the Peñas de Riglos can be engaging for families. Short walks around the base of the formations or visiting viewpoints offer accessible ways to enjoy the natural beauty together.
The region offers spectacular scenery year-round. However, for hiking and birdwatching, spring and autumn generally provide more moderate temperatures and pleasant conditions. Summer can be hot, while winter might bring colder weather, though the dramatic rock formations remain impressive.
Absolutely. Loarre Castle, a well-preserved Romanesque fortress, is situated on a limestone promontory offering spectacular views over the Hoya de Huesca, including distant sights of the Mallos de Riglos. Additionally, the Mallos de Agüero and Agüero Village highlight combines the natural beauty of the rock formations with the historic settlement itself, featuring artistic treasures like the Romanesque Church of El Salvador.
Yes, the vertical walls of the Mallos de Riglos are world-renowned among rock climbers, offering numerous challenging routes. The Mallos de Agüero also provide an ideal place for climbing due to their unique shape and height.
The Peñas de Riglos offer spectacular scenery from various points, including along the 'Camino del Cielo'. The Colorado Viewpoint is another excellent spot, providing splendid views along the route. The town of Riglos itself offers a magnificent perspective of the Mallos that shelter it.
Yes, the region is suitable for cycling. You can find various gravel biking and MTB trails that incorporate views of the natural monuments. For example, there are routes like the 'Vultures Viewpoint – Peñas de Riglos loop from Loarre' for gravel biking. More options are available in the Gravel biking around Loarre guide and the MTB Trails around Loarre guide.
Visitors are consistently awestruck by the sheer scale and unique shapes of the rock formations, describing them as 'spectacular' and 'awe-inspiring'. The opportunity for birdwatching, especially seeing vultures, is also highly praised. The contrast of these natural wonders with the charming villages and historical sites adds to the overall appeal.
The provided information does not indicate that specific permits are required for general hiking on established trails around the natural monuments. However, it's always advisable to check local regulations for any protected areas or specific activities like climbing, which might have different rules.
While the region offers a diverse natural landscape, a car generally provides the most flexibility to reach the various natural monuments and trailheads, especially those further from main towns. Public transport options might be limited, so planning your journey in advance is recommended.


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