Alegre River (Guaporé)
| Alegre | |
|---|---|
| Native name | Rio Alegre (Portuguese) |
| Location | |
| Country | Brazil |
| Physical characteristics | |
| Source | |
| • location | Serra de Santa Bárbara State Park |
| Mouth | |
• coordinates | 15°01′45″S 59°58′06″W / 15.029133°S 59.968345°W |
| Basin features | |
| River system | Guaporé River |
| Tributaries | |
| • left | Barbado River |
The Alegre River (Portuguese: Rio Alegre) is a river in the state of Mato Grosso, Brazil.