This Riblet triple received new Skytrac drive and return terminals.View down the lift line.New Skytrac return.Top bullwheel and guidage.View down from the summit.Lower lift line.Middle part of the lift.The first few towers were shortened as a result of the new drive station.Riblet sheaves on a Skytrac Monarch station.Side view of the bottom terminal.As of 2020, there are three of these drive terminals at Pine Knob.