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Landscape Features of Iowa

Posted on June 15th, 2017

  The following information is based on the book Landforms of Iowa, by Jean C. Prior, published by the University of Iowa Press, Iowa City, in 1991. The book was designed and illustrated by Patricia J. Lohmann.”   The topographic features seen on the following pages illustrate the range of picturesque diversity that is present across […]

Des Moines Lobe

Posted on June 15th, 2017

  The following information is based on the book Landforms of Iowa, by Jean C. Prior, published by the University of Iowa Press, Iowa City, in 1991. The book was designed and illustrated by Patricia J. Lohmann.”   The icy grip of continental glaciers was one of the most significant geologic processes to affect the Iowa […]

Erratics: Glacial Boulders in Iowa

Posted on August 13th, 2014

by Raymond R. Anderson and Jean Cutler Prior “Peculiar,” “irregular,” and “uncommon,” are words used to describe one class of Iowa rocks — glacial boulders or “erratics.” Geologists define erratics as stones or boulders that have been carried from their place of origin by a glacier and then left stranded by melting ice on bedrock […]