Mbaracayú Mountains

…has to cut through the Serra de Maracaju (Mbaracuyú), which in the past had the effect of a dam, until the Itaipu hydroelectric dam project was completed there in 1982; the river once expanded its bed into a lake 2.5 miles wide and 4.5 miles long, with Guaíra, Brazil, standing…

…then run eastward as the Mbaracayú Mountains. From the northeast, other ranges extend southward toward Encarnación, diminishing to hills in the south. The highest peak is Mount San Rafael at 2,789 feet (850 metres), in the Cordillera de San Rafael in southeastern Paraguay. To the west lies the broad valley…