List of hills of East Sussex

This is a list of hills in East 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 East 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 East 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. 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
Ditchling Beacon [3]	248	214	TQ331130	East Sussex county top (historical and current), Marilyn, HuMP, TuMP	Leith Hill	South Downs	East Sussex's county top. Trig point near summit which is 4 metres to the north.
Crowborough Hill [3]	242	159	TQ510306	Marilyn, HuMP, TuMP	Leith Hill	High Weald	East Sussex's second highest point Summit on A26.
Black Hill [3]	223	60	TQ474311 (est.)	TuMP	Crowborough Hill	High Weald	East Sussex's third highest point.
Firle Beacon [3]	217	196	TQ485059	Marilyn, HuMP, TuMP	Leith Hill	South Downs	Summit is on knoll, 10 metres west of trig point.
Wilmington Hill [3]	214	192	SU794183	Marilyn, HuMP, TuMP	Leith Hill	South Downs	Summit is 25 metres ENE of trig point.
Hindleap Hill [3]	203	66	TQ414321 (est.)	TuMP	Crowborough Hill	South Downs
Saxonbury Hill [3]	202	70	TQ577329 (est.)	TuMP	Black Down, Sussex	South Downs
Willingdon Hill [3]	201	110	TQ225108 (est.)	HuMP, TuMP	Wilmington Hill	South Downs	Summit on tumulus 20 metres north of trig point.
Newmarket Hill [3]	200	107	TQ362067 (est.)	HuMP, TuMP	Ditchling Beacon	South Downs
North's Seat [3]	175	109	TQ843119 (est.)	HuMP, TuMP	Crowborough	High Weald	Trig point
Cliffe Hill [3]	164	150	TQ434107	Marilyn, HuMP, TuMP	Butser Hill	South Downs	Summit is grass bank by golf course green, 10 metres SSE of trig point.

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 29 Dec 2016.

^[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 .