User blog comment:Hunterinpurgatory/How will Dean get out of Purgatory?/@comment-3045936-20120616220445/@comment-3045936-20120616230558

Well, maybe not a gate as the Devil's Gate was made by Samuel Colt. But maybe a location hence where the Dragons brought the virgin, or could have just been the location where Eve must have used to leave Purgatory or just some random location. Similar to the final seal and location of the door for Lucifer's cage was at Saint Mary's Covent.