The Cairngorms (Scottish Gaelic: "Am Monadh Ruadh") is a group of mountains in the eastern part of Highlands of Scotland. It is usually linked with the mountain of the Cairn Gorm. The Cairngorms became part of Scotland's second national park (the Cairngorms National Park) on 1 September 2003. It was part of the tentative list of UNESCO World Heritage Sites. 