Petoskey Stones, the state stone of Michigan, are fossilized coral resulting from glaciation and are often polished to reveal the beautiful pattern of the 6 sided coral colonies. Here is a Petoskey stone & Charlevoix stone.
This "optimized" Michigan road trip will take you hours to complete. According to Randy Olson, miles and 43 stops is the perfect road trip around Michigan. Olson – who’s about to graduate from Michigan State University
3 of the 5 Great Lakes form most of the coastline. A small portion of Lake Erie is in Southeast "corner" of the state, but most of it connects to Ohio. Lake Ontario is not connected to Michigan at all, but still one of the Great Lakes.