<P> 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 . A "HuMP" (the acronym comes from "Hundred Metre Prominence) is a hill with a prominence of at least 100 but less than 150 metres . </P> <P> 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, TuMPs and Tumps . By way of contrast, see also the article listing Tumps (a traditional term meaning a hillock, mound, barrow or tumulus). </P> <Table> <Tr> <Th> Hill </Th> <Th> Height (m) </Th> <Th> Prom . (m) </Th> <Th> Grid ref . </Th> <Th> Class </Th> <Th> Parent </Th> <Th> Range / Region </Th> <Th> Remarks </Th> <Th> Image </Th> </Tr> <Tr> <Td> Ditchling Beacon </Td> <Td> 248 </Td> <Td> 214 </Td> <Td> TQ331130 </Td> <Td> East Sussex county top (historical and current), Marilyn, HuMP, Tump </Td> <Td> Leith Hill </Td> <Td> South Downs </Td> <Td> East Sussex's county top . <P> Trig point near summit which is 4 metres to the north . </P> </Td> <Td> </Td> </Tr> <Tr> <Td> Crowborough Hill </Td> <Td> 242 </Td> <Td> 159 </Td> <Td> TQ510306 </Td> <Td> Marilyn, HuMP, Tump </Td> <Td> Leith Hill </Td> <Td> High Weald </Td> <Td> East Sussex's second highest point Summit on A26 . </Td> <Td> </Td> </Tr> <Tr> <Td> Black Hill </Td> <Td> 223 </Td> <Td> 60 </Td> <Td> T1474311 (est .) </Td> <Td> Tump </Td> <Td> Crowborough Hill </Td> <Td> High Weald </Td> <Td> East Sussex's third highest point . </Td> <Td> </Td> </Tr> <Tr> <Td> Firle Beacon </Td> <Td> 217 </Td> <Td> 196 </Td> <Td> TQ485059 </Td> <Td> Marilyn, HuMP, Tump </Td> <Td> Leith Hill </Td> <Td> South Downs </Td> <Td> Summit is on knoll, 10 metres west of trig point . </Td> <Td> </Td> </Tr> <Tr> <Td> Wilmington Hill </Td> <Td> 214 </Td> <Td> 192 </Td> <Td> SU794183 </Td> <Td> Marilyn, HuMP, Tump </Td> <Td> Leith Hill </Td> <Td> South Downs </Td> <Td> Summit is 25 metres ENE of trig point . </Td> <Td> </Td> </Tr> <Tr> <Td> Hindleap Hill </Td> <Td> 203 </Td> <Td> 66 </Td> <Td> TQ4141321 (est .) </Td> <Td> Tump </Td> <Td> Crowborough Hill </Td> <Td> South Downs </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Saxonbury Hill </Td> <Td> 202 </Td> <Td> 70 </Td> <Td> TQ577329 (est .) </Td> <Td> Tump </Td> <Td> Black Down, Sussex </Td> <Td> South Downs </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Willingdon Hill </Td> <Td> 201 </Td> <Td> 110 </Td> <Td> TQ225108 (est .) </Td> <Td> HuMP, Tump </Td> <Td> Wilmington Hill </Td> <Td> South Downs </Td> <Td> Summit on tumulus 20 metres north of trig point . </Td> <Td> </Td> </Tr> <Tr> <Td> Newmarket Hill </Td> <Td> 200 </Td> <Td> 107 </Td> <Td> TQ362067 (est .) </Td> <Td> HuMP, Tump </Td> <Td> Ditchling Beacon </Td> <Td> South Downs </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> North's Seat </Td> <Td> 175 </Td> <Td> 109 </Td> <Td> TQ843119 (est .) </Td> <Td> HuMP, Tump </Td> <Td> Crowborough </Td> <Td> High Weald </Td> <Td> Trig point </Td> <Td> </Td> </Tr> <Tr> <Td> Cliffe Hill </Td> <Td> 164 </Td> <Td> 150 </Td> <Td> TQ434107 </Td> <Td> Marilyn, HuMP, Tump </Td> <Td> Butser Hill </Td> <Td> South Downs </Td> <Td> Summit is grass bank by golf course green, 10 metres SSE of trig point . </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Hill </Th> <Th> Height (m) </Th> <Th> Prom . (m) </Th> <Th> Grid ref . </Th> <Th> Class </Th> <Th> Parent </Th> <Th> Range / Region </Th> <Th> Remarks </Th> <Th> Image </Th> </Tr>

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