anyway, take a look at the list. yeah there's california on there...and belgium. but the area of the midwest that houses those indiana and michigan brews is maybe like a 4 hour drive from end to end and all generally part of the same beer culture.
if you like american wine, go to napa valley i guess? but if you want american beer, you need to be further east. MI, IN, OH, PA the Four Horsemen of the Hoppocalypse.