I live in Crystal MN, a suburb of Minneapolis, and I go hunting for Eastern turkeys near Rollag & Detroit Lakes MN. It looks like you have Merriam turkeys down there possibly even Eastern turkeys and possibly some cross breeding going on. Looks like you are pretty close to the MO river and I would imagine that is some pretty good hunting country. I am not sure how much you know about turkeys so if you already know the stuff I am going to mention don't be offended. Go to the NWTF website I have linked below to check out the different species and approximate ranges of the turkeys. There is also a good description of each of the turkeys listed.
To locate birds in the spring I would try roosting them or talk to your in laws to see where they are hanging around. You will be very glad that you started turkey hunting this spring when you hear that first gobble and they start getting closer and closer. It sounds like they are standing on your shoulder gobbling, needless to say I really enjoy it.
Also check out the Turkey and Turkey Hunting forum titled 'Decision Time' by Brian Lovett. He explains the 'Decision' he is in and then ask what you would do. After reading the he goes through the 'Conclusion'. It is a great way to learn what others have learned without having to learn things the hard way.
Good luck this spring and feel free to ask any questions you may have.
"Strength does not come from physical capacity. It comes from an indomitable will." --Mahatma Gandhi
"Never confuse a single defeat with a final defeat."--F. Scott Fitzgerald, American writer