GR - 88
Point of departure:
Houses of the Pontón de la Oliva or any of the villages it passes through
This route invites us to make a journey through one of the most uninhabited areas of the Community of Madrid, the valley of La Puebla and in turn contemplate a lush and varied nature through traditional paths and trails. In addition, offers an interesting display of traditional mountain architecture.
Designed as a variant of the GR-10, the GR-88 crosses the area east of the Sierra, from North to South, starting at the pontoon in la Oliva, out of the Sierra Norte de Madrid after crossing the Jarama River, bygone La Hiruela, and plunging into the province of Guadalajara.
The route runs through practically all the Sierra of Puebla. At its beginning it borders the meanders that the Lozoya draws before its passage through the dam of La Parra, in this area is shown a beautiful riverside forest along with hydraulic constructions of the Isabel II Canal. After passing the town of El Atazar road gains altitude up to the Hill of the Pinillas, where we get into one of the most isolated areas of the reserve of the biosphere of the Sierra del Rincón, the Valley of La Puebla. After passing through the mountain town of La Puebla de la Sierra, the path climbs to the peak of the Porrejón one of the best vantage points to see the Sierra del Rincón and the Sierra de Ayllón. More down because we see La Hiruela, example of mountain architecture, and passed this town, We continue down an oak forest to the Jarama River, the road back to gain altitude to the town of El Cardoso de la Sierra (Guadalajara).