As I was driving south of Leominster State Forest, I saw some elongated oval piles next to the road shaped something like this (I exaggerated the shape slightly):
These were maybe 8 to 10 feet long. I was reminded of much larger piles from Petersham, sent in by a reader [Click here]. These smaller ones are different from anything I have seen in more eastern Middlesex County, and quite nice looking and suggestive. Here are some pictures:
Perhaps these have all been tumbled down from some previous shape but, if so, it is symmetric dammage. These above piles are very similar but there were also some smaller piles.There, out on the west side of the Nashua River, I got a faint whiff of a different aesthetic than the one which built rock piles here on the east side of the river. So I am proposing that the Nashua River is a boundary.