That is called a delta.
it is caled a delta
high plain at the mouth of Knife River
The floodplain is an area of flat land found on either side of a river that usually becomes wider as the river nears its mouth. A low watery formation of land at the mouth of a river is called a delta.
that would be a delta
A delta is a lowland formed by the deposition of silt at the mouth of a river. Deltas are typically formed where a river meets a body of water, such as an ocean or a lake, and the sediments carried by the river are deposited in the shape of a fan or triangle.
An alluvial plain, sometimes also referred to as a fluvial plain.
Flood plain, ie lowwer course or river mouth.
a nearly flat plain of alluvial deposit between diverging branches of the mouth of a river
Flood plain, alluvial plain, tidal plain, firth, inlet, bayou, estuary, slough, and river mouth are all terms that are synonymous with 'delta'.
an example of a river mouth would be the mouth of the Mississippi river
The mouth of the river is at the end of the riveri
The mouth of the river is at the end of the riveri