Native name Rio Formoso Main source Rondônia state River system Jaci Paraná River | Country Brazil Source Rondônia | |
 | ||
The Formoso River (Portuguese: Rio Formoso) is a river of Rondônia state in western Brazil. It is a tributary of the Jaci Paraná River.
In its upper reaches the Formoso River defines the western boundary of the Guajará-Mirim State Park. The park has two support bases on the banks of the Formoso River that are used by researchers and inspection teams.
References
Formoso River (Rondônia) Wikipedia(Text) CC BY-SA