Bob Miner and I saw this yesterday while hiking the Pachaug State Forest in North Stonington, CT. The site consists of a very unusual stone wall leading to a large cairn built on the side of a large boulder. We thought that you and your readers would be interested in seeing this.
Image #1 shows an unusual stone wall coming down from the top of an outcrop.
Image 2 shows the same wall taken from the top looking down on the cairn,
Image 3. Close-up of the cairn.
This picture ( image 4) shows Bob Miner pointing his meter stick towards a large quarz rock.
Image 5 shows the boulder on the right side of the cairn.