You guys need to start a petition to bring back Riverview Highlands. I was too young (27 now) when it closed to even remember it, but it was only 15 minutes from where my parents live. Now it is only a golf course but still has a "hill".
Found a link in which people are talking about closed resorts in MI:
Liftlines Skiing & Snowboarding Forums • View topic - Lost Michigan Ski Areas