Top of Hobbs Brook (#2) View of a site from the outside

With reference to the site described here. Some views:
closer:A bit to the side there is a break in the wall:A bit further (the break is behind the fallen log across wall) this anomaly:You can see the piles in the interior. All the piles here were inside the outline of the wall, except for the one.

Once you give up the idea that walls and piles are mundane, interesting structure becomes visible.