The county is landlocked and forms part of the Southern Uplands geographic region of Scotland. There are few settlements and the county consists mostly of low hill country, including parts of the Pentland Hills and Moorfoot Hills, with the highest point being Broad Law at 840 m (2,760 ft). The river Tweed is the chief river, flowing in a crescent shape through the county. Bodies of water in Peeblesshire include the Baddinsgill Reservoir, West Water Reservoir and Portmore Loch in the north and the Megget Reservoir, Talla Reservoir and Fruid Reservoir in the south.