what is the mouth of a river

The mouth of a river is the point where the river flows into a larger body of water, such as another river, a lake, a bay, a gulf, a sea, or an ocean. At the river mouth, sediments are often deposited due to the slowing of the current, leading to the formation of landforms such as deltas, sand bars, spits, and tie channels. The mouth of a river is a site of large-scale sediment deposition and has cultural significance, often being the location of towns and cities due to its historical importance for trade and travel.