The Sidlaws (Scottish Gaelic: Na Sidhbheanntan ), also called the Sidlaw Hills and Sidlaw Range, are a range of hills of volcanic origin in the counties of Perthshire and Angus in Scotland that extend for 30 miles (45 km) from Kinnoull Hill, near Perth, northeast to Forfar. Principal peaks within the Sidlaws include Ark Hill and King's Seat. The highest of the Sidlaws is Craigowl Hill. Adjacent to Craigowl Hill is Gallow Hill, on the side of which is located the Angus transmitting station, which provides television and radio services to the region.