Kinross-shire is landlocked and is generally flat, except in the north-west where the Ochil Hills are located, and along the southern boundary where the Cleish Hills can be found. The Ochils contain Innerdouny Hill, Kinross-shire's highest point at 497 m (1,631 ft). The most notable geographic feature of the county is Loch Leven which is also an important nature reserve; there are also several islands within the loch, the largest of which is St Serf's Inch (the others are Alice's Bower, Castle Island, Reed Bower, Roy's Folly and Scart Island). A much smaller body of water - the Arnot Reservoir - is located to the east of Loch Leven. On the far northern border a portion of the Glenfarg Reservoir lies within the county.