This is becoming fascinating:-) The Valley that shakes certainly fits the bill. One of the most spectacular view you can get from a road in England is, in my opinion, as you come over the high pass between the Hope valley and the vale of Edale with Mam Tor on your right - The vale of Edale spreads out before you with Kinder looming in the background like a giant dinosaur dropping. Having walked across the top of it I can assure you that this description is even more apt then:-)

Is Kinder the only place in the country where the highest point is called a 'low' btw? Kinder Low is one of the many trig points on Kinder and, if I remember rightly, the highest!

The Welsh / celtic naming of mountains on the pennines is perhaps more common than people think. Of the top of my head there are at least 2 in Yorkshire - Pen-y-ghent and Gragareth both sound pretty Celtic to me. Although I guess the latter should have been Gragaredd? I am sure there are loads more.

Cheers

DtG