River feature terms

The place where a river begins

• Mouth

• Delta

• Source

• Flood plain

A stream or river that joins a larger river

• Confluence

• Tributary

• River basin

• Estuary

The land that water flows across or under on its way to a river

• Source

• Mouth

• Delta

• River basin

Area that gets covered with water when the river floods

• Flood plain

• Tributary

• River basin

• Delta

Point where a river joins a larger one

• Confluence

• Tributary

• Delta

• Source

Part of the mouth that is tidal

• Tributary

• Confluence

• Delta

• Estuary

A fan-shaped area of land found at the mouth of a river

• Mouth

• Delta

• Estuary

• Flood plain

Place where the river enters the sea

• Source

• Delta

• Estuary

• Mouth