Manzanares (river) 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 del Pardo, an ecologically valuable area on the edge of Madrid. The river is canalised where it passes through the built-up areas of the city. As at
San Saba River San Saba River The San Saba River ("San Sabá") is a river in the U.S. state of Texas. It is an undeveloped and scenic waterway located on the northern boundary of the Edwards Plateau. The river begins in two primary branches. The North Valley Prong runs east through Schleicher County for 37 miles, while the Middle Valley Prong runs 35 miles through the same county. Both merge near Fort McKavett to form the San Saba River, which flows another 140 miles east/northeast until it drains into the Colorado River east of the city of San Saba. A major tributary is