I went out and tried to make a map. This is qualitative and not accurate: lines drawn between piles represent lines of sight I actually saw along. Numbers next to the lines are distances in paces. Magnetic compass directions are given for some of the lines. One reason for posting such a picture is to see if someone with accurate surveying skills might be tempted to come do the job right.
I spent a few minutes with FFC looking at this with his "Stupid Sheet" and none of the directions quite came out right. Of course the horizon is not flat here, it is a steep southwest-facing side of a hill in Stow, MA