Also known as 3M Park. Mostly singletrack with some double track as well. Pretty decent. Good views when you get pretty much on the shoreline of the lake. Fun ride.
Hwy 29 coming into menomonie take a right on Red Cedar St. the park access will be a gravel road on your left after the sharp right turn at the end of the houses.
http://www.singletracks.com/item.php?c=1&i=5225