• Cycling

    En la linea del frente. Guerra Civil en la Sierra Norte.

    Point of departurePoint of departure:
    Buitrago del Lozoya

    Through the civil war thread in the Sierra Norte and the valuable war infrastructures that are preserved, we propose a cycling route to enjoy the tranquility of the mountain roads and roads while walking along the water front and the Somosierra front.


    Distance: 41 km

    Tiempo aprox.: of 5 to 7 h

    Positive slope: 820 m

    GPX track

    Seguir ruta en Wikiloc


    We begin our adventure in Buitrago del Lozoya, that's well worth a visit, whether it's at the beginning or end of our route. On this visit you can not miss a walk through the village of Buitrago and its walls, The Mendoza Castle and the Picasso Museum. Being a circular route, we could start in any of the towns that the route passes through, but Buitrago is the one that has the most direct access by the N-I.

    Buitrago was one of the most punished populations in the Sierra Norte by bombings in the Civil War. Very close to the front, its medieval walls endured the sending of the canyons of the rebels during the contest.

    We left Buitrago by the old bridge and took the old N-I, North direction. Soon after we joined the M-137 road, that after 250m we left to access a public road, by which we ascend gently. Shortly after, at a fork, we begin to distinguish the signs of the route of the Front of Somosierra, only we're going to do it the other way, but it doesn't matter much, we will head towards Piñuecar by the livestock route. as we move forward we will see the signs of the route that will indicate where the main war infrastructures such as the Peña del Alemán are located, peña zorreras, etc. The climb to Cabeza de Piñuecar where a military observatory is located cannot be done by bike, so if you want to visit it you'll have to leave the bikes down.

    Once in Piñuecar, after passing the cemetery we go out to the M-132 road, we joined it in an easterly direction, we crossed the village and after 1.5km approx we reached a junction. We join this regional road in the direction of Pradena del Rincón – Montejo de la Sierra. The M-137 is usually a very quiet road except some weekends (not all) and it also has the addition of beautiful views. After oversteering some repecho, we arrived in Pradena del Rincón, one of the five villages that make up the Sierra del Rincón Biosphere Reserve and has interesting heritage and natural visits. Among the heritage sites we highlight the church of Santo Domingo de Silos, where a necropolis and a bell workshop were recently discovered…don't miss it.

    We left Pradena on the M-130, address Puerto de la Puebla, but shortly after leaving town (about 500m), we joined the glen of the Merinas, a beautiful route that runs through an interesting natural place. The road is fully conditioned for the bike. We abandoned the white zahorra road to the height of an old majada and took the path that goes to our left. The road surrounds the pasture of Ana Gutierrez, we have to be vigilant, and at the height of access to the pasture facing south, we take a path that to our left (to the South) heading for a bush or cancels, we continue along this path and soon after we arrive at the first of the visitable bunkers of the Water Front. Behind this bunker we cross the road and head for the following. The path enters the pine forest that sits on a hill, from here purple markings and explanatory panels guide us through the pine forest and give us information about the multiple war infrastructures we go through, Bunkers, nests of machine guns, command post, trenches…. We leave the pine forest on a dirt road that leaves us on the M-135 road, and we went down it to the Old Bridges Dam, the landscape deserves a stop.

    We cross the dam and continue along the road 1.5km, where we leave the road to join a livestock road that goes to our right. This very cycable road, crosses the beautiful pine forest of the Gariñas, bathed by the waters of the Old Bridges Reservoir. After the pine forest already soma Buitrago del Lozoya, where our adventure ends.


    Although it's not an extensive route, we recommend doing it in two days to enjoy and make the visits carefully. We provide you with information about road visits Buitrago del Lozoya, guided tours in front of Somosierra, Pradena del Rincon, guided waterfront tours. In Buitrago you have supermarkets and in Prádena del Rincón you can buy bread at the bar El Rincón. You can find rural accommodation in Prádena del Rincón y Paredes, in Buitrago you also have hotels and hostels. In Prádena and Buitrago you have bars and restaurants, in Paredes there is a bar.


    Hiking is an activity that carries certain risks if minimum safety guidelines are not followed, it is also a practice that is carried out in the natural environment so we must know some conservation standards that help us to make the least possible impact.

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