Hump Hills in the UK

According to Wikipedia –

The Marilyns were supplemented in 2007 by the HuMPs (Hundred Metre Prominence) which reduces the Prominence requirement to 100m. The list was compiled by Mark Jackson from a large number of sources and published online in 2010 in More Relative Hills of Britain. There are almost 3,000 British HuMPs, including three in the Channel Islands.