The western two thirds of the state, lying in the great central plain
of the United States, has a generally flat or undulating surface.
However, the eastern third has many hills and forests. The land
displays a gradual slope up from east to west; its altitude above the
sea ranges from 684 ft (208 m) along the Verdigris River
in Montgomery County
, to 4,039 ft (1,231 m) at Mount Sunflower
, one half mile from the Colorado border, in Wallace County
. It is a popular belief that Kansas is the flattest state in the nation, reinforced by a well known 2003 study stating that Kansas was indeed "flatter than a pancake."
This has since been debunked, with most scientists ranking Kansas
somewhere between 20th and 30th flattest state, depending on
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