One delta in this country is formed by the Murray and Darling rivers, while the lake in this country is Lake Eyre and its largest mountain is Mount Kosciuszko.
The WACA stadium can be found in a city in the southern portion of this country. The basin of one lake in this country contains cities such as Marreem. "Shires" along the longest river in this country include Deniliquin and Wakool, while sights in one city in this country include the Paddy's Market and Harbour Bridge. This country's interior contains such sites as Alice Springs and Uluru.  One delta in this country is formed by the Murray and Darling rivers, while the lake in this country is Lake Eyre and its largest mountain is Mount Kosciuszko. For 10 points, name this country that contains states such as New South Wales and Victoria.
The WACA stadium can be found in a city in the southern portion of this country.
{Australia}