Written a few years ago; I’m not sure when or if these trails will get tracked again:

The backcountry trail system has now been tracked. A single track has been put in by snowmobile; classic skiing only. Very pleasant terrain; scenic and rolling. Access is by driving to the intersection of the main park road and the entrance to the Overflow Parking area – see the map on the snow report web site. The trail meets this intersection; there is 1-2 km of very easy terrain tracked on the lake side of the main road but most of the trails are on the east side.