Blackdown, West Sussex

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Blackdown
View of Blackdown, watercolour by Helen Allingham, (1902)
Highest point
Elevation	279.7 m (918 ft)[1]
Prominence	191 m (627 ft)
Parent peak	Leith Hill
Listing	Marilyn, County Top
Coordinates	51°03′31″N 0°41′22″W / 51.0587°N 0.6895°W / 51.0587; -0.6895
Geography
Blackdown Blackdown in West Sussex
Location	Western Weald, South Downs National Park, England
Parent range	Greensand Ridge (broken range)
OS grid	SU919296
Topo map	OS Landranger 197, Explorer OL33
Climbing
Easiest route	Public transport: pavement and footpath along Tennyson's Lane, Haslemere; 3 car parks at Tennysons Lane (to north), 1 at Ferndens Lane (to south)

Blackdown, or Black Down, summit elevation 279.7 metres (918 ft) AMSL, is the highest point in both the historic county of Sussex and the South Downs National Park. It is one of the highest points in the south east of England, exceeded by Walbury Hill, Leith Hill and Pilot Hill. Blackdown is protected as part of the South Downs National Park.