 The parish includes the hamlets of Ratfyn and West Amesbury, and most of Boscombe Down military airfield.Amesbury is located in southern Wiltshire, north-northeast of Salisbury on the A345.It sits in the River Avon valley on the southern fringes of Salisbury Plain and has historically been considered an important river crossing area on the road from London to Warminster and Exeter.