Abbotsbury Castle is an Iron Age hill fort in south west Dorset, England, situated on Wears Hill above the village of Abbotsbury, seven miles west of Dorchester and the famous hill fort at Maiden Castle. It is situated on a high chalk hill overlooking the English Channel, and in its day was the front line of defence from invasion. The earthworks cover an area of about 10 acres (4.0 ha), of which about 4.5 acres (1.8 ha) are inside the ramparts.