The Sierra Norte de Madrid is a region defined by the ‘Guía de Turismo Rural y Activo’ (Guide for Rural Tourism). It’s located at the north of Madrid city centre; it has a t...more details >otal of 1265 km ², 17,000 inhabitants and 42 towns.
 
In the Sierra Norte de Madrid there are two main areas: the mountain area including the mountains Somosierra, Sierra del Lobosillo, La Cabrera, La Morcuera and part of Guadarrama; and the countryside area in south-east.
 
The main river in the Sierra Norte is called Lozoya, which course is interrupted by five reservoirs (Pinilla, Riosequillo, Puentes Viejas, El Villar y El Atazar). That is the reason why the zone is a very important source of water for the city of Madrid.
 
The most important economical activities in the Sierra Norte are agriculture, farm animals and tourism.
 
 
Sierra Norte (Madrid), see Wikipedia (last visited Feb. 16, 2009).< hide more details