Arenal River is a river of Costa Rica that is a tributary of the San Carlos River.[1] Its upper part is dammed by the Presa Sangregado Dam to form the Lake Arenal.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Arenal_river._Costa_Rica.jpg/220px-Arenal_river._Costa_Rica.jpg)
References
edit- ^ Instituto Costarricense de Turismo map Archived 2009-01-26 at the Wayback Machine, 2007. (in Spanish)