I grabbed a Czech-style Pilsner from Lion Bridge Brewing Co. in Cedar Rapids. I have yet to be there and will eventually go, as I'm always up for checking out breweries. I believe I've had a couple of others from there, before but I don't remember what those were.
In the Cedar Valley, you can get craft beers nearly everywhere that sells it. Straight from the brewery itself, from a liquor store that carries a ton of different ones, or even bars or taps that offer it from the keg.