A tributary of a river is a tributary.
It might be a stream, a creek, or another river that empties into the first river.
Its is called a tributary
A tributary.
A Tributary
Creek
The join of a small river (a tributary) joins a larger river (the main river) is called a confluence.
It is called a tributary
A tributary.
A tributary, it contributes to the flow of the main river. kool-Aid grape slurpy
Tributaries; They contribute to the river system.
Tributary.
Tributary.
A tributary