The Sucio River (Spanish: Río Sucio, ) is a river of

Costa Rica Costa Rica, officially the Republic of Costa Rica, is a country in Central America. It borders Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, and the Pacific Ocean to the southwest, as well as Maritime bo ...

. The river gets its name from the sulfur deposits found on the

Irazú Volcano The Irazú Volcano () is an active volcano in Costa Rica, situated in the Cordillera Central close to the city of Cartago. The name might have come from either the combination of "ara" (point) and "tzu" (thunder) or a corruption of ''Iztar ...

, which give the waters a brownish color. It is a

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of the Río San Juan.Instituto Costarricense de Turismo map
, 2007. The Sucio River begins half a kilometer from the top of the Irazú Volcano, converging with the Sarapiquí River at the town of Boca Rio Sucio, where both rivers flow into the San Juan River, and then into the Caribbean Sea. One of the Sucio's branches merges with the Patria River to form the Chirripo Norte River, a tributary of the

Colorado River The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...

References

Rivers of Costa Rica {{CostaRica-river-stub