A mountain ridge that separates river systems is called a water shed. They are very common around large rivers and streams around the world.
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A ridge of land separating river systems is called a water shed. Normally the land is very high up and mountainous.
A long undersea mountain chain is called a mid-ocean ridge. These ridges are formed by tectonic plates spreading apart, allowing magma to rise and create new oceanic crust. The Mid-Atlantic Ridge is one well-known example of a mid-ocean ridge.
A gap in a mountain is typically called a pass or a saddle. It is a lower point along a ridge that allows for passage between two peaks or valleys.
A watershed divide is a ridge of land that separates one watershed from another by directing the flow of surface water in different directions.
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.
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Continental ridge
A mountain ridge that separates the heads of opposing glacial valleys is called an arete. It is a narrow and sharp ridge formed by the erosive action of glaciers on both sides.
the thin mountain ridge is called an arête.
A ridge of land separating river systems is called a water shed. Normally the land is very high up and mountainous.
The low point on a mountain ridge is called a col or a saddle. It is the area between two higher points along the ridge line.
Mountains. We use the term "divide" to mean the place on a mountain or ridge that separates two directions of water flow.
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arete
A divide.