Circular route through the Sierra de Ayllón in Madrid: Cebollera Vieja (2,128m) from Puerto de Somosierra
Circular route to the Cebollera / Tres Provincias, Cuchar Quemado and Cebollera Nueva from the pass of Somosierra via the waterfall of Los Litueros and the Dehesa Bonita de Somosierra. [5h10min; 19,4kms; +/-1015m].