I have spent some time in the patch hill area recently and found a few items that may interest you. Due [to] picture size limitations, I have to divide this into 3 parts.
The following serpent effigies are connected by a stone wall. This section of stone wall is described as having peaks in previous blog post ( http://rockpiles.blogspot.com/2015/07/patch-hill-equinox-revisited.html) or it could be interpreted as the body of a serpent. There are other rock piles in stone wall corners that could be interpreted as platforms.