http://glendoradoshootingpreserve.com/Just a couple miles west of Princeton on Hwy95. Not a super high end club, they have a couple of good fields, a laid back attitude, and some of the lowest prices on birds around.
I usually take the dogs over there at least once or twice in Sept for a tune up.
http://www.minnesotaheartlandpreserve.com/ Granite Falls
I haven't shot there, but drive by it on the way to our hunting land every weekend. Very large place, some public land (WMA's) attached to the property so you have to option of chasing scratch birds after your paid hunt. 1800 total acres of private land there, so it definetaly looks to have a more authentic "wild" fell to it.
"a man's rights rest in three boxes: the ballot box, the jury box, and the cartridge box." Frederick Douglass