Manzanares (river) Manzanares (river) The Manzanares () is a river in central Spain, which flows from the Sierra de Guadarrama, passes through Madrid, and eventually empties into the Jarama river, which in turn is a tributary to the Tagus. In its urban section, the Manzanares River as it appears today, with a section of water several meters deep, in some parts navigable by canoes, is the result and the product of the work of dozens of years of channeling and damming. The river Manzanares has its source near the Navacerrada mountain pass in the Guadarrama mountain range. The upper river basin is
Soto del Real it is protected inside the Parque Regional de la Cuenca Alta del Manzanares. It borders with Manzanares el Real on the West, Miraflores de la Sierra on the East, Colmenar Viejo on the South, and Rascafría on the North. Soto del Real encompasses a variety of terrains: mountain tops, slopes, and the Manzanares-Guadalix tectonic pit. The urban nucleus is inside the pit, going through the Mediano, Chozas and Matarrubias streams, which flow into the Santillana reservoir, so they are tributaries of the Manzanares river. Geologically speaking, it is divided into the Mountain range, where there is a predominance of Gneiss