Mounds of earth at Cahokia - obvious evidence of
human modification of the natural environment.
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With such a richly textured and colorful floodplain canvas, it is no wonder
that Mississippian people chose to heavily exploit its resources. Exploitation
of this natural diversity by Mississippians -- whose numbers and concentration
into large towns were greater than those of their progenitors -- modified the
natural environment in many ways. Fire, land clearing, creation of agricultural
fields, land leveling, and mound building all left an indelible mark on the
American Bottom.
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