Cadair Berwyn is the highest point (county top) of the historic county of Denbighshire. The historic border with Merionethshire also ran through the summit. Moel Sych and Cadair Berwyn North Top had been thought at one time to have been the joint county tops of Denbighshire, but resurveying demoted them as explained previously. In terms of modern administrative units, the summit lies entirely within the Powys council area, though the border with modern Denbighshire council runs very close (about to the northwest - the new boundary does not exactly follow the old county boundary). Curiously, the historic county of Denbighshire lies on the eastern side on the main Berwyn ridge, but the modern council lies on the western side. The northern end of the main ridge (Craig Berwyn on the OS map, height, north of Cadair Berwyn North Top) is the highest point in Wrexham county borough. Cadair Berwyn stands between Snowdon and the Wrekin and blocks their line-of-sight. The view from the summit on a clear day is extensive and includes Snowdon, Cadair Idris, Brecon Beacons, Shropshire Hills, Peak District, Yorkshire Dales, Lake District and the Isle of Man. The peak is the nearest high mountain to a significant fraction of the population of the English Midlands but sees far fewer walkers than equivalent summits in the Lake District and Snowdonia. There is a standing stone in the area, located near the summit between Cadair Berwyn and Tomle. This was re-erected in June 2008 by High Sports. The standing stone can be found at SJ080337. Below the mountain is a small lake, Llyn Lluncaws. On 11 August 1942, a United States Army Air Forces, Boeing B-17E Flying Fortress flying from RAF Polebrook to RAF Burtonwood crashed into the side of Cadair Berwyn resulting in the deaths of all eleven passengers and crew. It is the location, as well as Cadair Bronwen, of an alleged UFO landing in 1974, known as the Berwyn Mountain UFO incident. References Further reading Gordon Emery - Curious Clwyd (1994) External links Computer generated summit panoramas Cadair Berwyn index www.geograph.co.uk : photos of Cadair Berwyn and surrounding area Marilyns of Wales Hewitts of Wales Mountains and hills of Denbighshire Nuttalls Highest points of Welsh counties Aviation accidents and incidents locations in Wales