Gents: Not to brag, but I was looking up some trail maps and came across this dandy that shows all of the ORV/off-road trails in Michigan proper (as opposed to the UP, for which there is another map).
http://www.midnr.com/publications/pdfs/ ... or_web.pdf
We'll be riding at Missaukee Junction this Saturday, but it's a goal to set wheels in dirt at all of these trails sooner rather than later. You can too if you've got a spark arrestor and the necessary trail and orv passes.