east joining with the Culaga and the Bochaga. Its name then changes to the Margua. The Negro, the Colorado, and the San Lorenzo then flow into it. From the...

Garganta, receives affluents such as the Quebrada la Conquista, Río Oeste, Río Verde, Río San José, Quebrada la Garganta). In the western sector of the...

belonging to the Orinoco watershed. From north to south: Arauca River Bojabá Margua Orinoco River Capanaparo Cinaruco Tomo Elvita Bita Meta River Casanare Cravo...