Rio Pisco or the Pisco River is a river of Peru, one of the four, running from north to south making the water network of the department of Ica Region. Located in the provinces of Pisco , Ica and Castrovirreyna in its descent from the Andes highlands, the river takes a predominant northeast-southwest direction, which is why the main course stems from Huancavelica department, although the department of Ayacucho also abuts Ica. Its origin is in the lagoon Pultoc ( Huancavelica ) located at 5,000 m, although Rio Pisco is formally born at the confluence of the rivers and Huaytará Churis.
Rio Pisco's length (including its tributaries) is about 472 kms. Pisco River is one of the four rivers of the department of Ica, which comes at a higher altitude, has a larger basin (4,500 km ²) and a longer stroke than the other three rivers (170 km). In its descent towards the coast, Pisco River receives the waters of the river Castrovirreyna. Like the Chincha river, the river waters of Pisco River are regulated by the damming of four gaps in its catchment area.
Rio Pisco has a wetland in the village of Caucato (in the province of Pisco ), which is used by birds migrating through the region to head north. This river, runs irregular reaching extensive coastal plain in a short but torrential tour. At its irregular flow, the breadth of the valley and the intensive use of water in vines, cotton and fruit crop, it so happens that in many months Rio Pisco fails to deposit water into the Pacific Ocean . This phenomenon is further accentuated by the characteristics of climate and soil, which moreover, has led to the development of a fairly mature agro-industrial activity requiring more water as the days go by.