I couldn't follow your "path" and find it. Are you saying go to Tnet HOME PAGE, ( don't see a "7" to select there ) or Oak Island Forum first page, then to PAGE 7, and then down to a Thread titled U SHAPED STRUCTURE but there isn't one there when doing that..
So not knowing what your looking at, and or getting at about the sleds, people did live on the island. As we see there were plenty of activities on the island over the years. I could see someone either living or working on the island using sleds to move their stuff on the island and maybe even to and from mainland. I still would think for ships coming to drop off items to the mainland that mainland would have it's own proper dock and not need to be dropped off on the far end of OI and then sleded across it and then across water or ice to mainland. Not knowing just how much of an area iced over at the time, I've always thought the area between OI and Mainland froze from being a small area and little water current between them. I guessed that up or down the coast a bit that probably wasn't an issue, but don't know that to be true.. Always that chance that OI U Shape Structure was built for the reason you suggest for ships to dock there, unload and haul it across the island to mainland if the shore line is frozen up and down the coast.
