A series of east-west trending folds in the chalk to the north of the Hampshire Basin is controlled by faults in the underlying Jurassic strata. From south to north these are the Winchester-East Meon Anticline, the Winchester-King's Somborne Syncline/Alderbury - Mottisfont Syncline, the Stockbridge Anticline and the Micheldever Syncline. The Winchester-East Meon Anticline in particular gives rise to many hills including Yew Hill, Compton Down, Oliver's Battery, Magdalen (Morn) Hill, Chilcomb Down, Cheesefoot Head, Telegraph Hill, Deacon Hill, Twyford Down, St. Catherine's Hill, Beacon Hill, Old Winchester Hill and Henwood Down.