The directions on the app are incorrect and take you to someone's home a few miles from the park entrance, but you can find parking at a few different locations around the park. I googled Riverbend Nature Area
Dimondale, MI 48821 and followed the gps.
Very fun track for all levels of rider. I rode 7.7 miles my first time out there and had a blast. Several obstacles in good shape and a large rock pile for advanced riders. Overall I give it a 7.5 out of 10. We didn't see another rider the entire time out either, which was very nice having the trails to ourselves.
Marty K. on Burchfield Park Singletrack
This trail fun for family rides and somewhat serious riders. Early spring some of the trails will be flooded but in mid summer they'll open up. There some teader toders and table tops they may be old but there are some new one. Overall it's a nice easy trail with some other activities.