Cissbury Ring map

Cissbury Ring

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184 m

Elevation

Elevation is the altitude of a place
above sea level.

52 m

Prominence

Peak’s prominence is the least
vertical to be covered to get from the
summit to any other higher terrain.

Proportional Prominence 104 m

About

Cissbury Ring is an 84.2-hectare (208-acre) biological Site of Special Scientific Interest north of Worthing in West Sussex. It is owned by the National Trust and is designated a Scheduled monument for its Neolithic flint mine and Iron Age hillfort.

Cissbury Ring is the largest hill fort in Sussex, the second largest in England and one of the largest in Europe overall, covering some 60 acres (24 hectares). The earthworks that form the fortifications were built around the beginning of the Middle Iron-Age possibly around 250 BC but abandoned in the period 50 BC - 50 AD.

The site of the fort contains a Neolithic mine, one of the first flint mines in Britain. Around 270 shafts were dug into Cissbury hill over around 300 years of use. Shafts were up to 12 metres (39 ft) deep with 7 metres (23 ft) diameters at the surface. Up to eight galleries extended outwards from the bottoms of the shafts, often interconnecting with one another. The site has been damaged by illicit metal detecting.

There's a trail leading to the summit.

By elevation Cissbury Ring is

# 52 out of 178 in West Sussex
# 96 out of 256 in South Downs National Park

By prominence Cissbury Ring is

# 26 out of 178 in West Sussex
# 43 out of 256 in South Downs National Park