Walbury Hill is a hill which is the highest point of both the historic county of Hampshire, England and the modern ceremonial county of Berkshire, England. At above sea level, it is also the highest natural point in South East England, higher than Leith Hill in Surrey. Although traditionally the county top of Hampshire, the summit of Walbury Hill was placed under the administration of the former Berkshirecounty council when the civil parish of Combe was transferred from Hampshire in 1895. The historic border between the two counties near Walbury Hill runs along the Wayfarer's Walk, a long distance footpath which lies about north of the triangulation pillar at the summit. The highest point of the historic county of Berkshire lies along this footpath, at a height of above sea level on the northern flank of the hill. Walbury Hill is the starting point for both the Test Way and the Wayfarer's Walk footpaths. The hill is a part of a ridge which forms the border between the southwest of Berkshire and the northwest of Hampshire, and also extends into Wiltshire. It is around southeast of the town of Hungerford. It is part of the Kirby House estate, owned by the Astor family. On the hill's summit is the Iron Age hill fort of Walbury Camp. Combe Gibbet stands on the adjoining Gallows Down. There is also a small low-level circular brick building, approximately 6 feet high, on the south side of the hill. This appears to be a disused reservoir. The true summit is marked by a triangulation pillar approximately from the main Test Way. Before the use of satellites was commonplace, Walbury Hill was occasionally used by the BBC as a temporary relay station during the Newbury Races. There is no metalled road across the hill, but the byway is open to all traffic and maintained with a hard gravel surface, because of its previous use by outside broadcast vehicles. The ridged summit is also popular with paragliding enthusiasts. It is one of three nationally important chalk wild grasslands in the North Wessex Downs, the others being Rushmore and Conholt Downs and part of Hog's Hole.
