Within sight of the power generation plant along the Niagara River is the Devil's Hole State Park. It wasn't quite obvious exactly what to look for here as everything was covered in snow. But on the edge of the park, away from the parking area, is a gorge carved by a river and waterfall which no longer exists. There is also a trail leading down into the gorge but it wasn't something to try to do without traction devices as it was nearly entirely encased in ice!