The river Manzanares has its source near the Navacerrada mountain pass in the Guadarrama mountain range.
The upper river basin is protected as the  Parque Regional de la Cuenca Alta del Manzanares, a nature reserve which is recognised as a biosphere reserve by UNESCO.

The Manzanares flows in a south-eastern direction from its source, and passes through the medieval town of Manzanares el Real where it is dammed to form the Santillana reservoir, one of the most important water supplies for the capital.
The river then takes a southern direction and enters the Monte de El Pardo, an ecologically valuable area on the edge of Madrid.

The river was canalised where it passes through the built-up areas of the city.
 In the 21st century the river was restored to provide biodiversity and facilities for Madrid residents.

The Manzanares skims past the westernmost part of the city and further downstream serves as a dividing line between the old centre of the city and the Carabanchel and Usera neighbourhoods to the southwest.
It is along this stretch that it passes next to Atlético Madrid's former football ground, the Vicente Calderón.
The river leaves the city at its southernmost tip.
It makes a strong eastern turn which takes it past the village of Perales del Río and towards the river Jarama, into which it flows near the dormitory town of Arganda del Rey, ending its 83 km (52 mi) journey.
The river Manzanares has its source near the Navacerrada mountain pass in the Guadarrama mountain range. The upper river basin is protected as the  Parque Regional de la Cuenca Alta del Manzanares, a nature reserve which is recognised as a biosphere reserve by UNESCO.
The Manzanares flows in a south-eastern direction from its source, and passes through the medieval town of Manzanares el Real where it is dammed to form the Santillana reservoir, one of the most important water supplies for the capital. The river then takes a southern direction and enters the Monte de El Pardo, an ecologically valuable area on the edge of Madrid.
The river was canalised where it passes through the built-up areas of the city.  In the 21st century the river was restored to provide biodiversity and facilities for Madrid residents.
The Manzanares skims past the westernmost part of the city and further downstream serves as a dividing line between the old centre of the city and the Carabanchel and Usera neighbourhoods to the southwest. It is along this stretch that it passes next to Atlético Madrid's former football ground, the Vicente Calderón. The river leaves the city at its southernmost tip. It makes a strong eastern turn which takes it past the village of Perales del Río and towards the river Jarama, into which it flows near the dormitory town of Arganda del Rey, ending its 83 km (52 mi) journey.
Manzanares (river)