Well, I too am in Minnesota but we are a whole state apart. I am all the way at the top. I can see Canada from here. You should go to the Minnesota bookstore.
http://www.comm.media.state.mn.us/bo.../bookstore.asp
They sell both public recreation information maps and plat maps. Of course plat maps are the best you can get. They will show you all the public and private land boundries and well as the land owners. Plat map books only sell for about $30 and they are worth every penny.
The other maps they sell like the "Public Hunting Areas" maps are cheap, about $4, but don't give you the detail that plat maps do. However, they do show all of the State Wildlife Management Areas. If you are close to any, they are some good hunting.