발렌시아 주
There are only two major rivers: the Segura in the Province of Alicante, whose source is in Andalusia, and the Júcar ("Xúquer") in Province of Valencia, whose source is in Castilla–La Mancha. Both are subjected to very intense human regulation for cities, industries and, especially, agricultural consumption. The river Turia ("Túria") is the third largest and has its source in Aragon. Most rivers in the area, such as the Vinalopó, are usually short, have little current (due to agricultural usage, climatic reasons or both) and are often completely dry during the summer. Other Valencian rivers are the Serpis and Sénia.