This raised area,whilst dry moated,was difficult to photograph as all the grassy areas were equally bland.The moat was about 4ft.deep and the raised,uneven motte had a definite depression in the centre,giving the impression that the humps were somehow remains of,or grassed over walls.
see http://www.domesdaybook.co.uk/shropshire1.html
see http://www.castleuk.net/castle_lists_midlands/138/corfhamcastle.htm
see http://www.pastscape.org/hob.aspx?hob_id=111237
see http://www.discovershropshire.org.uk/html/search/verb/GetRecord/CCS:MSA219