As a Minnesotan, just thought I'd point out a couple of map inaccuracies:
1. The Minneapolis and St. Paul sprites are backwards. St. Paul should be east of the Mississippi, while Minneapolis belongs on the west side.
2. The Winona sprite should be located in the region NW of LaCrosse, WI. Currently, it is SSW of LaCrosse.
Everything else in Minnesota looks pretty good.
