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.
The types that occur in West Sussex are Marilyns, HuMPs and TuMPs, listings based on topographical prominence.
Peaks with high prominences tend to be the highest points around and likely to have extraordinary views.
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).