Park only in one of the two turnouts – do not block the road. Exit by following to the loop at the end.
Crisscrossing many New England fields and forests are the remains of low stone walls. Some have been torn down; many have fallen apart from neglect and old age. One expert estimated that about 100,000 miles of stone walls remain.
Some of those walls were built by indigenous peoples, possibly for ceremonial reasons. Some were built by European settlers, either to mark off properties, or to keep livestock corralled, or to enclose burial grounds. Some were built just to get those damned stones out of the fields so that crops could be planted.
This place is surrounded by an old stone wall, although it's mostly tumbled down, and part is below the main level, on a lower tier, out of sight. The stones at the far end, in and around the loop, have quite a different purpose.