Madrid 7 Picos is a cycling event in the Sierra de Madrid, starting from Buitrago del Lozoya, approximately 75 km north of Madrid. The town is situated in the Lozoya Valley, on a rise surrounded by the Lozoya River and at the base of the Puerto de Somosierra.
The event is part of a local cycling tradition where hundreds of riders go into the Sierra on weekends. It is intended for cyclists seeking a demanding mountain ride, as well as for groups of friends who ride together for enjoyment.