Loch Lomond and The Trossachs National Park is a national park in Scotland centred on Loch Lomond, and includes several ranges of hills and the Trossachs. It was the first of the two national parks established by the Scottish Parliament in 2002, the second being the Cairngorms National Park. The park is the fourth largest in the British Isles, with a total area of 1,865 km and a boundary of some 350 km in length.