Parts of a River

Front

beginning of a river.

Back

headwaters

Front

end of river

Back

mouth

Front

land drained by a river system

Back

watershed

Front

Where two or more rivers meet

Back

Confluence

Front

a smaller river flowing into a larger river

Back

tributary

Front

moving in the direction of the current

Back

downstream

Front

moving against the flow of the river

Back

upstream

Front

allows water to pass through

Back

permeable

Front

does not allow water to pass through

Back

non-permeable