Busy day

I saw at least four different kinds of rock piles sites today. First I took an extended walk on Snake Meadow Hill in Westford and saw a sloped site, like a marker pile site; later saw some oval ground piles near a lakeshore; still later, saw some larger piles around a big boulder. Then later today I took a walk in Carlisle with a friend and we visited some very large rock piles that might have been from field clearing but also might not. Anyway it was a busy day and I have no energy for posting extensively about it now, I still have to process the Carlisle photos.Please check back Sunday sometime.