What part of Michigan does it go through?

The longest race I’ve done is a half-marathon. I’ve trimmed my running way back as I try to finally cure plantar fasciitis in my left foot, but when I was doing the most miles there seemed to be something about ten miles where my body was just not happy with me. My feet and knees especially seemed to start pitching a fit. I’m sure I could’ve taken some steps (no pun intended) to strengthen them and push beyond that but I guess I just didn’t have the motivation. Lol