I was only out for a short hike this weekend, but managed to find an interesting spot just uphill from (and east of) the meeting of two small brooks. The majority of this area is a breakout zone, but some rock piles here have structure and are clearly man-made. Here is a rock with quartz bits in it, right next to a rock pile:
One of the clearly man-made rock piles:
A crude stone row that ends at a breakout.
Another stone row at this site runs roughly north-south with the northern end being crude and winding. The southern end is a straight stone wall.
This is the northern end of the stone row.
This is the southern end. There is a small wedged rock in the picture (half meter stick in front) covered in green moss:
Looking downhill, over the small wedged rock. Can you see it down there, in the distance?
It's a larger wedged rock. This view is looking back uphill (half meter stick in front) with the stone wall just visible in the background, to the right.