Analysis of information sources in references of the Wikipedia article "List of Hewitt mountains in England, Wales and Ireland" in English language version.
While Foel Penolau is over the 2,000ft (609.6m) required to be a mountain, the minimum drop between the col - the lowest point on a ridge between two peaks - and summit was under 98ft. The pair have found that the drop has now increased to 104.6ft, and is, therefore, a mountain. As a result of the survey, Foel Penolau has been included in the list of Hewitts - hills in England, Wales or Ireland over 2,000ft high which have a minimum drop of 98ft.
A Hewitt is "a Hill in England, Wales or Ireland over Two Thousand feet high (610m) with a drop of at least 30 metres (98 feet) all round". [...] There are currently 524 Hewitts: 180 in England, 135 in Wales and 209 in Ireland.
In June 2010 Dawson created the Simms (Six-hundred Metre Mountains; originally called Sims) by combining the Murdos, Corbett Tops, Graham Tops and Hewitts and lowering the height threshold to 600m. [...] Hewitts are Hills in England, Wales and Ireland at least 2000 feet high with a drop of at least 30 metres on all sides. Although subsumed into the Simms, the list has been retained by its author.
We place no restrictions on use of the data by third parties and encourage authors of other websites and applications to do so. We just ask users to observe the terms of the Creative Commons license
In all probability Calf Top will be the last such hill to become a mountain in England.
The first person recorded as having climbed all the English 2000-foot summits was Edward Moss1 who completed the list on 22nd July 1951. The second person was ED Clements, compiler of The Hewitts and Marilyns of Ireland, who finished on 30th May 1953.
The first person recorded as having climbed all the Welsh 2000-foot summits was Edward Moss1 who completed the list on 22nd July 1951. The second person was ED Clements, compiler of The Hewitts and Marilyns of Ireland, who finished on 30th May 1953, though it was not until 17th September 1991 that he added Pen y Brynfforchog7, which was not in the original list.
The most satisfactory recent list in our opinion was originally compiled by Alan Dawson in his book, the Relative Hills of Britain, using a minimum reascent figure of 30 metres; this gives 317 summits in England and Wales, hills which Dawson originally named the Sweats (Summits - Wales and England Above Two thousand).