For the geographically challenged...

Ok.  So, in this day and age looking at maps seems so 1980s.  We didn't consult any maps prior to leaving home other than the high level google map on this site.  It's great to be able to rely upon fancy phones and car GPS systems, but sometimes looking at maps is useful.  Not that it really caused us much trouble.  But two things to know.  First, when driving from Louisville to St. Louis you will drive through both Indiana and Illinois on your way to Missouri. Secondly, there is time zone shift in Indiana. Who knew?  I guess we could have known both facts had we consulted some sort of map ahead of time, but I guess we learned anyway. So, we got a free extra hour in St. Louis.  Nice!