English: Landforms of Iowa, based on public domain Iowa State Unversity Geograpical Map Server and Iowa DNR map. The Landforms are defined by Jean Prior (1991), ultimately based on Samuel Calvin's (1904) Drift Sheets of Iowa map.
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I created this work entirely by myself. Base map from Iowa DNR server, with ISUGIS rivers superimposed using ArcMap, trimmed in Photoshop
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
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2008-07-29 14:02 Billwhittaker 2470×1584× (1458381 bytes) {{Information |Description=Landforms of Iowa, based on public domain Iowa State Unversity Geograpical Map Server |Source=I created this work entirely by myself. |Date=2008 |Author=~~~ |other_versions= }}
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{{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|Landforms of Iowa, based on public domain Iowa State Unversity Geograpical Map Server and Iowa DNR map.