The Limentra di Sambuca (also Superior or Western Limentra) rises from Monte la Croce, elevation about 1,319 metres (4,327 ft), and passes through Sambuca Pistoiese. It has a length of 19.4 kilometres (12.1 mi) and flows into the Reno near Ponte della Venturina, near the border between Tuscany and Emilia-Romagna. Near Pàvana is a dam with a capacity of 900,000 cubic metres (730 acre·ft). The waters are also used for the aqueduct serving Pistoia.