Live in SW lower Michigan and also not finding anything close.
Leah, have you found the Michigan Capital Celiac Support Group? They are awesome! Here's their website:
I don't know if you are near Lansing, but if you are anywhere near there, they are a good group to get in touch with. They run an annual food fair, a summer camp for kids, meetings throughout the year that are sometimes potlucks or sometimes with a speaker, and they have an excellent newsletter that they will e-mail to you.
(momma to the Gluten-Free Ann Arbor group - currently at 726 people!)