The document defines plains as horizontal surfaces at lower elevations than surrounding areas. It notes that the largest plains in the US are the Great Plains and that plains can be found on all continents. It then defines divides as imaginary lines along ridges where rainfall and runoff drains to opposite sides, and states that the continental divide in the Rocky Mountains is a major divide in the US and the longest overall.
16. Divide
A Divide is an imaginary line along a
ridge of high ground or a mountain
range area where rainfall and runoff
flows or drains downhill on one side or
the other.
17. Divide
A Divide is an imaginary line along a
ridge of high ground or a mountain
range area where rainfall and runoff
flows or drains downhill on one side or
the other.
18. Divide
A Divide is an imaginary line along a
ridge of high ground or a mountain
range area where rainfall and runoff
flows or drains downhill on one side or
the other.
19. Where We Find Divides
A Divide in the U.S. is the
continental divide in the Rocky
Mountains.
The longest divide is the continental
divide.
20. Where We Find Divides
A Divide in the U.S. is the
continental divide in the Rocky
Mountains.
The longest divide is the continental
divide.
21. Where We Find Divides
A Divide in the U.S. is the
continental divide in the Rocky
Mountains.
The longest divide is the continental
divide.