Do you mean a Continental Divide? It's the area of higher elevation where the river systems east of the line all flow into the ocean on the eastern side of the continent, and all the water in the river systems to the west of that line flow toward the ocean to the west.
The divides between watersheds in Russia are commonly referred to as "watershed divides" or "drainage divides." These geographical features separate different river basins and direct the flow of water into distinct drainage systems. In Russia, notable watershed divides include the Ural Mountains, which separate the Caspian Sea basin from the Arctic Ocean basin, and the various mountain ranges across the country that delineate different river systems.
The Ohio River divides Indiana and Kentucky.
Rain hitting down hard on the ground makes rivers form.
continental divide
It is Orinoco River
ural river
The Connecticut river
river thames
Watersheds separated from each other by higher ground are called divides. Divides act as boundaries that channel precipitation into separate drainage basins or river systems. They determine which direction water flows and help define the boundaries of different watersheds.
It is an area of land that is drained by a river. It is also a ridge or elevated area of land that divides two areas of land that are drained by two river systems.
Irrigation!
The Sabine river divides Texas and Louisiana. It was described as the line between the Old South and the new Southwest.