Jáchal River

It is part of the Desaguadero River basin, and one of the most important permanent watercourses in the province, with an average flow of 9 cubic metres per second (320 cu ft/s).

From its origin, the Jáchal flows south for 75 kilometres (47 mi), up to a ravine in the pre-Andean range, in a place called Cuesta del Viento.

There, it turns eastward towards the city of San José de Jáchal, flowing for 40 kilometres (25 mi) along a steep gorge.

[1] In 2015, Barrick Gold Corporation admitted that 224,000 liters of "cyanide solution" had spilled into the Jáchal and four other nearby rivers due to what they described as "a faulty valve".

While Barrick Gold Corporation and the San Juan Mining Chamber insisted that the spill posed "no threat" to the area's population, the provincial government advised that residents only drink bottled water until further notice.