Explore hiking trails around Colmenar del Arroyo, Comunidad de Madrid. The best hike near Colmenar del Arroyo is Collado de Cerromalejo Loop via Pista forestal de la Calle Alta, a 6.0 mile loop in Parque Natural de la Sierra de Guadarrama Norte. Colmenar del Arroyo has population 2013.0.