Thought this might be helpful for new people looking to ride or people from out of state. Has lots of information like parking and size of the trail just click the star and follow the link of the trail name and it'll download a pdf of the map. Hope this helps.
http://www.michigan.gov/dnr/0,1607,7-153-10365_15070-38330--,00.html
http://www.michigan.gov/dnr/0,1607,7-153-10365_15070-38330--,00.html