Near Lover's Lane - Southborough, MA

I have been driving by this attractive bit of undisturbed hilltop, with stone walls, each time I head home from further south. So I finally figured out how to get there. Now that I have been there I think maybe the other side of the highway might be worth exploring too - that is where the water is coming from that re-emerges from underground around where the blue outline appears on the map fragment.