Headwaters of Canoe River - northernmost Foxborough

This the landform west of King Philips Rock, between Little Canoe River and Canoe River:

You can get there from East Str, where there is a brook croosing just below the dam of that pond in the middle of the map fragment.
At first I went more or less directly east and found a few low ground pile (upper blue outline):

Kind of a dull, dark, flat place under yearling pines.

I continued north and east, wanting to get up to whatever high points were available. Somewhere back in those hinterlands (and back down low near the water, that maybe now is "east" Canoe River) was a small site with three or four  items:

Otherwise it was dull in there. 

My main intention was to explore along the Canoe River and I am sorry I did not stick to that plan and explore along the river to the north. 

I eventually circled back to the lower end of the pond and went south along the edge of the high ground following a stone wall. This was a familiar configuration (I was reminded of Howard Rd in Shirley) of wall on bluff over brook - so I continued along southward, trying to keep an eye out for structures on either side of the wall. Not at all surprised to come to a mound. Some views:

At the end of the ridge was a collection of satellite piles that were more or less evenly spaced. A configuration of marker piles next to mound is familiar. Here we are looking back towards the mound which is to the not quite visible to the left in the background:

A little further downstream was another mound. 

This one had only one satellite.