I was in the Thumb last weekend. For those of you not from Michigan, it's the part that looks like a thumb.
Anyway, we had to detour to avoid insane crowds of Jimmy Buffet fans and passed a huge field of windmills that had been two or three just a few years ago. I had heard they wanted to build on the thumb because the airflow was better. But I didn't realize how big it had gotten. There were even a few still under construction. Pretty cool.
ETA: That's not a very accurate map. I've never heard anyone describe Flint as being part of the thumb before.