Cadair Berwyn is the county top of Denbighshire. Cadair Berwyn is a mountain summit on the high ridge which forms part of the border of Denbighshire and Merionethshire.

• County: Denbighshire
• Highest Point: Cadair Berwyn
• Height (ft): 2,726
• Height (m): 830
• Grid Reference: SJ0716532355
• Dates Slept On: 27/28 June 2012