A sea or ocean is found at the mouth of a river.
Generally, the mouth of a river is found where it empties into another river, a lake, reservoir or ocean. A large river's mouth can cover a massive area.
dr van dr found the mouth .
Deltas are found at the mouth of rivers
A delta is the mouth of a river.
At a lake. The end of a river is at the sea.
At the point the river empties into a lake or ocean.
Gulf of Mexico
Argentina.
Sedimentary rocks, such as sandstone and conglomerate, are commonly found at the mouth of a river. These rocks are formed from the accumulation and compression of sediments carried by the river over time.
Mouth.
a delta
Water flows downhill. A watercourse will always be found in a valley, assuming there is precipitaion.