I fish Big Stone Lake on the Mn and SD boarder, at Ortonville, Mn. It is about half way up on the East side of the state. Very nice crappie and some of the Biggest Yellow Perch I have seen, with a bonus of Walleye thrown in the mix. The lake is 1 mile wide and 35 miles long.
You may want to check and see if the ice is off the lakes up there yet.
I just made a call up there and in some places there is still 2 foot of ice on the lakes. call ahead when you decide where you are going to go and make sure the ice is off. It may save you a trip for nothing. EB