| Aros River | |
|---|---|
| Native name | Río Aros (Spanish) |
| Location | |
| Country | Mexico |
| State | Sonora |
The Aros River is a river in the northern Mexican state of Sonora. It is the largest tributary of the Yaqui river, and is the largest free flowing river in western Mexico. Its headwaters are in the Sierra Madre Occidental. The Yaqui river begins at the confluence between the Aros and Bivaspe rivers. The rugged terrain surrounding the river means it is most easily accessible by boat. [1]