Elías Piña Province
The main river is the Artibonite that, in some places, marks the Dominican-Haitian border. Other rivers are Macasías, Tocino, Joca and Vallecito, all of them tributaries of the Artibonite river. The Caña river is the most important in the southern part of the province, going from south to north; it is a tributary of the Macasías river.