a watershed, also called a drainage basin, is an area drained by a river.
salisbury Maryland
Delta is the name for such a piece of land.
the delta
a shore
Drainage Basin
meadow; head of a river; river bottom; land of tomorrow.
Paraguay got its name from a river that flowed north to south through the land. The Indians gave the river its name meaning a great river.
It is the river bank. Or coast, if it is emptying into the ocean, like the Mississippi River.
A delta.
Delta
A delta.
delta