Ackling Dyke is a section of Roman road in England which runs for 22 mi (35 km) southwest from Old Sarum (Sorviodunum) to the hill fort at Badbury Rings (Vindocladia). Part of the road on Oakley Down has been scheduled as an ancient monument. After leaving the Salisbury suburbs, the route crosses open country throughout, and nowhere comes close to any settlement. Apart from a one-mile section of the main Salisbury - Blandford road which follows its course, the road can mostly be followed along minor lanes and tracks.