4.6
(293)
1,658
hikers
80
hikes
Hiking around Horcajo de la Sierra-Aoslos offers diverse terrain within the Sierra Norte of Madrid, characterized by a mountainous backdrop and lush riverine vegetation. The area includes the villages of Horcajo de la Sierra, situated at 1066 meters on "Los Altillos," and Aoslos, located in a flatter area surrounded by meadows. Hikers can explore communal pasturelands with oak trees, known as the Dehesa Boyal, and paths along the Arroyo del Valle and Madarquillos River. The landscape also features orchards, walnut…
Last updated: July 9, 2026
4.5
(4)
17
hikers
11.5km
03:42
430m
430m
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.5
(2)
4
hikers
5.05km
01:32
180m
180m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.6
(14)
104
hikers
18.8km
06:20
830m
830m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
4.7
(12)
51
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(7)
46
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Small hermitage in the port of Somosierra
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At the top of the waterfall. It's a difficult climb, but the scenery is extraordinary.
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Descending from Pico Tres Provincias along the La Sierra Cebollera trail.
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With beautiful views towards the province of Segovia. Also towards other mountain ranges in Madrid.
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A small but beautiful village in the mountain pass of the same name. It boasts a lovely church and the beautiful Hermitage of La Soledad, which commemorates the Battle of Somosierra, fought during the War of Independence with the support of neighboring villages.
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It's near Somosierra, with a good path going up and down. There's also a plaque commemorating the soldiers who fought in the Battle of Somosierra during the War of Independence.
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Belonging to Montejo de La Sierra. Slightly secluded spot with tables and benches.
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Beautiful village in the Sierra del Rincón mountains of Madrid. With the possibility of several mountain routes.
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There are over 80 hiking routes in Horcajo de la Sierra-Aoslos, offering a wide range of options for different skill levels and preferences. You'll find everything from easy strolls to more challenging ascents.
Yes, Horcajo de la Sierra-Aoslos offers several easy trails perfect for beginners or families. For instance, the Acebeda de Robregordo – circular route is an easy 5.1 km path that takes about 1 hour 30 minutes to complete. The region also features urban walks through Horcajo de la Sierra and Aoslos, and a leisurely path following the Old Irrigation Ditch (La Reguera) through orchards and the Dehesa Boyal.
Yes, many of the trails in Horcajo de la Sierra-Aoslos are circular. A popular option is the Robregordo Holly Forest loop from Robregordo, which is 8.5 km long and takes about 2 hours 30 minutes. Another moderate circular route is the Prádena del Rincón – Montejo de la Sierra loop from Horcajuelo de la Sierra.
Hikers can explore diverse natural features including the communal oak woodlands of the Dehesa Boyal, lush riverine vegetation along the Arroyo del Valle and Madarquillos River, and picturesque orchards. The area is also known for its refreshing natural pools (pozas), which are popular in warmer months. You can also find several mountain peaks nearby, such as Pico Tres Provincias (Cebollera Vieja) and Pico Porrejón.
Yes, the region is rich in history. You can visit the 15th-century Gothic Iglesia de San Pedro in Horcajo de la Sierra, or the 20th-century Iglesia de San Isidro in Aoslos. An ancient 'Roman bridge' connects the two villages, and you can also find traditional Potros de Herrar (horse shoeing stands) and a well-preserved forge in Aoslos. For more challenging hikes, the Ruta Alto de la Pinilla offers remnants of Spanish Civil War defensive positions.
Many trails in the Horcajo de la Sierra-Aoslos area are suitable for dogs, especially those through natural landscapes like the Dehesa Boyal and along river paths. It's always recommended to keep dogs on a leash, especially in areas with livestock or protected wildlife, and to check local regulations for specific routes.
The region offers pleasant hiking conditions for much of the year. Spring and autumn provide mild temperatures and vibrant landscapes, ideal for exploring. Summer is also popular, especially for trails near natural pools where you can cool off. Winter hiking is possible, particularly on lower elevation trails, though higher routes may require appropriate gear for colder conditions.
Horcajo de la Sierra-Aoslos is accessible by public transport, primarily bus services connecting from Madrid. Specific bus routes serve the villages of Horcajo de la Sierra and Aoslos, from which many trails begin. It's advisable to check current bus schedules and routes in advance, as services may be less frequent on weekends or holidays.
Parking is generally available within the villages of Horcajo de la Sierra and Aoslos. Designated parking areas can be found near the main squares or trailheads. For specific routes, it's recommended to check the starting point details on komoot for parking suggestions, though street parking is often an option in these smaller communities.
The hiking routes in Horcajo de la Sierra-Aoslos are highly rated by the komoot community, with an average score of 4.6 stars from over 280 reviews. Hikers often praise the area's diverse terrain, from mountainous backdrops to lush river valleys, and the well-maintained paths that connect natural beauty with local heritage.
Yes, the region is known for its refreshing natural pools, locally called 'pozas,' which are a popular attraction during warmer months. These natural swimming spots along the rivers, such as the Poza de las Yeguas near the Madarquillos River, offer a perfect way to cool down after a hike.
Absolutely. For experienced hikers seeking a challenge, the Ruta Alto de la Pinilla is a demanding 16 km circular route. It traverses mountainous terrain and offers significant elevation changes, leading to historical sites and panoramic views. The region's mountainous backdrop ensures plenty of opportunities for more strenuous ascents.
Horcajo de la Sierra-Aoslos and its surrounding areas offer a variety of rural accommodations, including guesthouses and cottages. There are also campsites available for those who prefer to stay closer to nature. Within the villages, you can find local cafes and restaurants to refuel after your hikes.


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