The Una River is a river of Bahia state in eastern Brazil. It discharges into the Atlantic Ocean between Canavieiras to the south and Ilhéus to the north.
| Una River | |
|---|---|
  | |
| Native name | Rio Una (Portuguese) |
| Location | |
| Country | Brazil |
| Physical characteristics | |
| Mouth | |
• location | Atlantic Ocean |
• coordinates | 15°13′47″S 39°00′00″W / 15.229637°S 38.999881°W |
| Basin features | |
| River system | Una River |
Tributaries include the Aliança and São Pedro rivers. Part of the river basin is in the 18,715 hectares (46,250 acres) Una Biological Reserve, a strictly protected conservation unit in the Una municipality created in 1980.[1]In its lower reaches the river flows through the western part of the Una Wildlife Refuge, which surrounds the biological reserve.[2]At least eight of the tributaries rise in the 11,336 hectares (28,010 acres) Serra das Lontras National Park, created in 2010.[3]