That looks like Ballig in Maughold - "when the southern extremity was reached, a small area of land, roughly the size of one quarterland, was left between the Lord's lands, and the Barony and Abbeylands beyond, which extended into Lonan.... this small area was designated a treen on its own, as well as being a quarterland. In early times it was called Rhencullen.... some time in the eighteenth century the name was changed to Ballig..." [From A History of Kirk Maughold by W. & C. Radcliffe.]

Sue