Ruta BTT Los Manantiales is a mountain bike ride centered near Belmonte de Tajo, southeast of Madrid. Participants select from two routes that are entirely cyclable: a 70 km option and a 45 km option. The event typically attracts around 500 participants, creating a busy local MTB day atmosphere rather than a large-scale race.
The route follows paths and trails in the countryside surrounding Belmonte de Tajo, featuring springs and fountains that lend the ride its name. Participants have ranked it among the most scenic MTB routes in the southeast of the Community of Madrid, and the organizer notes the surrounding natural area's environmental value. The event started in 2011 and has seen growth in entries and local recognition since its inception.