The Sarca is a river springing from the Adamello-Presanella mountains and flowing into Lake Garda. As an emmisary of the lake it becomes known as the Mincio.

The river is shallow and fast flowing ,passing through the Val di Genova, forming a number of waterfalls, of which Cascina Muta and Saft dei Can are the best known. Before reaching Val Rendena, part of its water is diverted to a hydroelectric powerstation. Then its flow becomes less and less tumultuous. The main places on the river include Carisolo,Pinzolo, Tione di Trento,Le Sarche,Ponte Arche and Ragoli.