Anywhere to find/pick/buy wild strawberries?

As I understand it wild strawberries are fragile and difficult to pick cleanly and also degrade quickly after being picked. As a result, they rarely (or never) make it to market.

I'm driving across the Great Lakes area in late July, Wisconsin to Philadelphia with a bunch of meandering in between. Is there anywhere in there I could finally try wild strawberries? Preferably as close to the source as possible, but I'd be interested in anything. I thought Michigan might have some?

I'd be interested in other wild fruits too (I mean different strains that you might miss out on from normal markets, e.g. I've never found alpine or musk strawberries).