Creation of Hay Slough Portage Trail No flash player has been set up. Please select a player to play Flash videos. Video not playing? Update your browser or download the video clip Ronnie Evans talks about creation of the Hay Slough Portage Trail and marking dangerous spots. Process Observed: Portage TrailSafe Travel RouteTrail Markers Date Process Observed: Wednesday, March 17, 2010 Galleries: Hay Slough Portage Gallery