Hydrology
The department is mainly watered by the Paraguay River and its affluents: the Salado River, which is flowed by the Ypacaraí Lake and the streams Itay, Paray e Ytororó. The streams Yuquyry and Ñanduá drain into the Ypoá wetlands. The lakes Ypacaraí, Ypoá and the lagoon Cabral are situated in this region of the country.
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