These are good frequenices for all of Minnesota.
They are a good start.
All are AM except the 41.500 which is FM
Army NG helo's St. Paul 41.500 FM, 126.200, 241.000, 347.700
AF Reserves 934th AW Minneapolis 282.675, 252.100, 351.200
ANG 133rd AW Minneapolis 311.200, 240.150, 243.800 , 324.300
ANG 148th FW Duluth 288.900, 138.1500, 138.300, 138.425, 139.725, 139.800, 139.900, 276.400, 293.300, 399.000
Refueling track AR109 across northern MN 320.900, 327.100, 327.600, 343.500
Also look at the reference section of this webpage for Camp McCoy and Volk Field, WI.
There is a lot of activity there with units from ND, MN, IA, IL, IN and MI going there pretty often.
Also as mentioned go to the Chicago Area Monitor Association website
http://www.carmachicago.com/frqif.htm Click on the red area for the new section.
They have a wonderful 70 page milcom section that will give you a lot of info.
There is also a great refueling guide on that website as well.
BTW sent you a PM the other day related to one of your other posts
Regards
Dan
Apple Valley