List of hills of West Sussex

This is a list of hills in West Sussex. Many of these hills are important historical, archaeological and nature conservation sites, as well as popular hiking and tourist destinations in the county of West Sussex in southeast England.

Colour key

Class	Prominence
Marilyns	150 – 599 m
HuMPs	100 – 149 m
TuMPs	30 – 99 m
Unclassified	0 – 29 m

The table is colour-coded based on the classification or "listing" of the hill. The types that occur in West Sussex are Marilyns, HuMPs and TuMPs, listings based on topographical prominence. "Prominence" correlates strongly with the subjective significance of a summit. Peaks with low prominences are either subsidiary tops of a higher summit or relatively insignificant independent summits. Peaks with high prominences tend to be the highest points around and likely to have extraordinary views. A Marilyn is a hill with a prominence of at least 150 metres or about 500 feet. ^[1] A "HuMP" (the acronym comes from "Hundred Metre Prominence) is a hill with a prominence of at least 100 but less than 150 metres. ^[2]

In this table Marilyns are in beige and HuMPs in lilac. A "TuMP" as defined here is a hill with a prominence of at least 30 but less than 100 metres. The term "sub-Marilyn" or "sub-HuMP" is used, e.g. in the online Database of British and Irish Hills to indicate hills that fall just below the threshold. To qualify for inclusion, hills must either be 200 metres or higher with a prominence of at least 30 metres, below 200 metres with a prominence of at least 90 metres (the threshold for a sub-HuMP) or be in some other way notable. For further information see the Lists of mountains and hills in the British Isles and the individual articles on Marilyns, HuMPs and TuMPs. A "TuMP" as defined here is a hill with a prominence of at least 30 but less than 100 metres. By way of contrast, see also the article listing Tumps (a traditional term meaning a hillock, mound, barrow or tumulus).

Table

Hill	Height (m)	Prom. (m)	Grid ref.	Class	Parent	Range/Region	Remarks	Image
Black Down [3]	280	191	SU919296	West Sussex county top (historical and current), Marilyn, HuMP, TuMP	Beacon Batch [4]	Greensand Ridge	West Sussex's county top. Knoll at summit in trees, 30 m NNE of trig point.
Littleton Down [3]	254.9	149.2	SU941149	HuMP, TuMP, subMarilyn	Butser Hill	South Downs	West Sussex's second highest point Summit in trees
Linch Down [3]	248	111	SU848173	HuMP, TuMP	Butser Hill	South Downs	West Sussex's third highest point No summit feature. Summit is 15 metres ENE of the trig point.
Glatting Beacon [3]	245	98	SU965131	SubHuMP, TuMP	Butser Hill	South Downs	Trig point at summit.
Beacon Hill [3]	242	95	SU965131	SubHuMP, TuMP	Butser Hill	South Downs	Tumulus at summit.
Chanctonbury Ring (Chanctonbury Hill) [3]	240	217	TQ138120	Marilyn, HuMP, TuMP	Leith Hill [4]	South Downs	Summit on western edge of ring.
Harting Downs [3]	229	68	SU794183	TuMP	Butser Hill	South Downs	Grassy summit.
Devil's Dyke [3]	217	114	SU794183	HuMP, TuMP	Ditchling Beacon	South Downs	Summit within 2 metres of trig point.
Marley Heights [3]	216	53	SU890302	TuMP	Black Down, Sussex	South Downs	Beech tree on summit, east of the farm.
Truleigh Hill [3]	216	67	TQ225108 (est.)	TuMP	Ditchling Beacon	South Downs
West Harting Down [3]	216	80	SU762187	TuMP	Butser Hill	South Downs
Kithurst Down [3]	213	111	SU762187	HuMP, TuMP	Butser Hill	South Downs	Featureless summit; 5 metres south of trig point.
Farm Hill [3]	212	63	SU961145	TuMP	Butser Hill	South Downs	Crop field at summit.
Hatch Farm Hill [3]	211	43	SU898298 (est.)	TuMP	Black Down	South Downs
West Hill [3]	211	89	TQ279117	TuMP	Ditchling Beacon	South Downs	No summit feature.
Barlavington Down [3]	208	55	SU961155	TuMP	Butser Hill	South Downs	No summit feature. Arable field.
Telegraph Hill, Sussex [3]	207	130	SU870264	HuMP, TuMP	Black Down	South Downs	Summit is 5 metres NW of a bungalow.
Bow Hill [3]	206	74	SU824112 (est.)	TuMP	Butser Hill	South Downs
St Roche's Hill [3]	206	57	SU877110 (est.)	TuMP	Butser Hill	South Downs
Wolstonbury Hill [3]	206	66	TQ283138 (est.)	TuMP	Ditchling Beacon	South Downs
Bedham Hill [3]	155	122	TQ014221	HuMP, TuMP	Black Down	South Downs	Flat, featureless summit, partly covered in trees.
Thorney Island [3]	6	6	SU765019 (est.)	"Significant Island of Britain" [3]	None		Possible alternative summit by church.

See also

• List of mountains and hills of the United Kingdom
• List of Marilyns in England

References and footnotes

1. Dawson, Alan (1992). The Relative Hills of Britain. Milnthorpe: Cicerone Press. ISBN   1-85284-068-4. Archived from the original on 2010-09-21.
2. Jackson, Mark. "More Relative Hills of Britain" (PDF). Relative Hills of Britain. Archived from the original (PDF) on 12 October 2013. Retrieved 31 March 2013.
3. Name, height, prominence, parent, grid and class data from: Database of British and Irish Hills, retrieved 28 Dec 2016.
4. Mark Jackson, More Relative Hills of Britain, Lulu: 2009. pp. 144-145

^[1]

1. Name, height, prominence, grid, class and parent data from: Jackson, Mark (2009). More Relative Hills of Britain, Marilyn News Centre, UK, p. 168. E-book Archived 2013-10-12 at the Wayback Machine .