re: Kansas dirt/gumbo. It took one painful lesson to learn that a farm 2-track is easy to drive down, in the morning, when it's below freezing, before the sun comes up. 4 hours late that 2-track is 6" of mud
This is Dakota dirt; better than Kansas. Most of the Canada topsoil got deposited by the glaciers north of Kansas. Topsoil around Presho S. Dakota (and central Ill.) can be 3' thick
Kansas is good for this though