The Snowy Mountains, known informally as "The Snowies", is an IBRA subregion in southern New South Wales, Australia, and is the tallest mountain range in mainland Australia, being part of the continent's Great Dividing Range, a cordillera system. It makes up the northeastern half of the Australian Alps and contains Australia's five tallest peaks, all of which are above 2,100 m (6,890 ft), including the tallest Mount Kosciuszko, which reaches to a height of 2,228 m (7,310 ft) above sea level. The offshore Tasmanian highlands makes up the only other major alpine region present in the whole of Australia.