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An unusual geologic
feature of the Loess Hills is the occurrence of parallel,
step-like terraces carved into the slopes like a
stairway. These terraces are referred to as cat steps,
and their origin is somewhat uncertain. They are most
likely the result of a geological process in which the
loess slumps downward when it becomes extremely wet.
However, cattle grazing has occurred in most of the hills
for over 100 years, and it is possible that the
preference of cattle to follow these natural steps has
enhanced their appearance. |