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*many of the high, steep bluffs along the [[Mississippi River]] face southward rather than the northward direction that would result from carving by northern ice.
*computer simulations have failed to model an Ice Age with any plausible parameters.<ref>http://creation.com/images/pdfs/tj/j09_2/j09_2_142-143.pdf</ref>
*water is receding in the Great Lakes too quickly to support the time period proposed by Ice Age theory.
*the soil in the [[Great Plains]] is too flat and soft to support a theory they were covered by glaciers.
