the great plains
A watershed is the area separating two different drainage basins/river systems.
The Continental Divide of the Americas is an example of a mountain ridge that separates river systems. Further examples include Northern Divide or Laurentian Divide.
continmental dividecontinental divide
A divide
A mountain ridge that separates river systems is called a water shed. They are very common around large rivers and streams around the world.
The Chattahoochee River separates the Eastern and Central Time Zones
Its a stretch of high land that separates river systems
That would be the Columbia River. This river separates approximately two thirds of southern Washington from northern Oregon. At a place on the 46th parallel north this river total enters the state of Washington, and this parallel becomes the border line that separates the two states.
there are no river in paraguay!
The eural river separates Europe from Asia
Ural River. It is the traditional boundary that separates Europe and Asia.
There is no single river that separates all the states of Australia.However, the Murray River separates the two states of Victoria and New South Wales, forming the border for much of the way before continuing into South Australia.