This stone is on private land belonging to Trelew Farm.
www.trelew.co.uk
Built into the wall, it is recognised as a monument although some might say it was ancient farmers making use of a large lump of stone...we may never know?
Another stone has been identified nearby lying recumbent in the wall.
Within five mins walk of Boscawen-un, this whole area seems to have more standing stones than any other part of Cornwall.