Nothing special but a lot of fun. Single track with a lot of twists and turns, different surfaces and great views right along the lake. I was up at beartown earlier in the day and had a lot more fun at point au roche. Probably only a few miles of good singletrack and a lot of "regular" bike trail but the singletrack stuff is really fun
From Plattsburg, take route 9 north to CR 22 (Point Au Roche RD), turn right. Take the second park entrance, go all the way to the end of the road (at the lake). Bike to the lake and turn left when you get to the lake.
http://www.singletracks.com/item.php?c=1&i=3965