Examples of tributaries include the Missouri River, which is a tributary of the Mississippi River; the Willamette River, which is a tributary of the Columbia River; and the Illinois River, which is a tributary of the Mississippi River.
The smaller stream is a tributary of a larger stream, river or lake.
Other streams or lakes that joins a main river is a tributary
The Snake River is a major tributary of the Columbia River in the U.S.
The Langani river is a tributary to the Kafue river.
Creek
The join of a small river (a tributary) joins a larger river (the main river) is called a confluence.
A tributary, it contributes to the flow of the main river. kool-Aid grape slurpy
It is called a tributary
actually there is no Yakima river its actually a tributary that's connected to the Columbia River in Washington state.
A tributary.
A Tributary