Mountain Bike Michigan Trails

Michigan camping with mountain biking trails?
Looking for a campsite where there is an easy access to a great mountain biking trail (or a great hiking trail). I plan to go next week for 3 days or so. Particularly in the lower peninsula.
Any suggestions or personal favorites?
Can’t beat the trails here, best in Michigan. Rustic and modern campgrounds, personal favorite so far. Check out the link
Trails of Michigan, Maybury State Park Mountain Biking Trail

