The is/are a very well-known example of a drainage divide. Most the water that flows east from it flows into the Mississippi river at some point.

Mississippi River drainage basin

Explanation:

A drainage basin is defined as an area of land where precipitation gathers and direct it into a common outlet, such as bay and river. When two rivers direct into the same body of water but do not meet, then it forms a major divide.

The Mississippi River drainage basin is a very well-known example of a drainage divide. Most of the water flowing from east is shed into the Mississippi river at some point.