Our verdict
TBC — a quiet parcel, best combined with a wider Mere or Stourhead-area walk.
Open downland near Mere, close to the Stourhead estate — a third, separate 'White Sheet' place-name in Wiltshire alongside the hillfort near Norton Ferris and the smaller down near Berwick St John, both some distance away.
Open access land — you can roam freely on foot.