A concrete slab 4.5m north-south by at least 2m. At the north end of the slab, two metal girders protruded from the upper surface of the slab at an angle of 45 degrees. At the southern end was a slightly raised rectangular area of concrete with two metal, threaded bolts protruding from the main concrete slab. The vegetation cover was grass when recorded in September 2007. J.J.Hall, Trysor, 19 November 2007