Great hike today!!!! Dam project is underway but does not limit this hike. Grist Mill section is paved. Carried the 2 year old in the pack down and up, a few rocky seconds but we would do it again. He had a great time throwing sticks in the river and walking through the tunnel. Beware of limited parking at the Hilltop entrance, it was full even on this chilly day (Sunday) and we'll be making a DNR "donation" for unauthorized parking. We will do this one again!