<a href="https://en.wikipedia.org/wiki/Barringer_Slough" class="extiw" title="en:Barringer Slough">Barringer Slough</a> on landform of Iowa map
<a href="https://en.wikipedia.org/wiki/User:Billwhittaker" class="extiw" title="en:User:Billwhittaker">Bill Whittaker</a> (<a href="https://en.wikipedia.org/wiki/User_talk:Billwhittaker" class="extiw" title="en:User talk:Billwhittaker">talk</a>)
I (<a href="https://en.wikipedia.org/wiki/User:Billwhittaker" class="extiw" title="en:User:Billwhittaker">Bill Whittaker</a> (<a href="https://en.wikipedia.org/wiki/User_talk:Billwhittaker" class="extiw" title="en:User talk:Billwhittaker">talk</a>)) created this work entirely by myself; modified from an earlier Landform map I had created and uploaded to WP