I don't know how you flat landers do it. Ohio thru now (half way across South Dakota) is just too flat for me. I need mountains, not the earth's curvature. Oi. Almost to Wyoming though!!
You're driving??? Crazy...Wyoming has it's flat moments too, as does Montana. lol Welcome to the Great Plains!
Dunno about how the rest of them cope, but when I first saw Mountains (Front Range in Colorado) I went "oh, this is home.