How correct you are Whirlibird. Every time I am dealing with stones in the garden or in any hole I am trying to dig I think of the farmers in centuries past who had to deal with the big stones surfacing in their fields. Many of the stones in my wall could only have been dragged there by oxen. The corner stones marking property boundaries are often the really big ones, though what most amazes me are the sizes of some of the stones you find in the foundations of old barns and houses, and of the effort it would have taken to get them in place. For us modern day folks however, the old stone walls that are everywhere are part of what makes New England so beautiful.