The highest point in a range of hills/mountains is usually a prominent feature; or at least easily located, with a cairn, trig point or other feature on top; like Scafell Pike, Cross Fell, The Cheviot, or smaller hills further south: Leith Hill, Walbury Hill, Bardon Hill.

But the highest point in the Peak District, or indeed the whole Pennines south of the Aire Gap, is a 636m spot height on the OS map on the Kinder plateau, which probably no-one apart from the OS surveyor is likely to be able to locate accurately. But at least it is on the watershed of England; the ridge runs roughly east-west here, and rain falling to the north of the high point drains into the Irish Sea, while that falling to the south drains into the North Sea.

Things are worse if you consider the West Pennines (which I define as the hills west of the glaciated valleys connecting Rochdale, Littleborough, Todmorden and Burnley). A thorough search on the OS 1:25000 map reveals that the highest point in this range is a 477m spot height between Whittle Hill and Top of Leach. The nearest named location is Tottington Higher End Moor, although at the other end of the summit ridge is Hail Storm Hill. Now, since the fell race up Windy Hill always lives up to its name, shouldn't there be a race up Hail Storm Hill?