Hydrography
The Paraguay River runs 33 km of this department. Many areas water tributaries, such as Manduvirá River which crosses the peoples of Piribebuy and Valenzuela. The main tributary of the river Manduvirá is Tobatiry, called in its nascent: Yhaguy River.
Other major rivers are the Piribebuy, which is born in Pirayú and empties into the Paraguay River, and Salado born in Ypacaraí. These waters flowing through a rich vegetation and is forming along the way as the beautiful jumps of Piribebuy, Piraretá, Chololó and others.
In this department is the emblematic Lake Ypacaraí which is formed by the waters of many streams that flow into it. It is approximately 22 miles (35 km) long, between 5 and 6 km wide, 300 meters deep and 90 km surface.
Read more about this topic: Cordillera Department