The Murray River (River Murray in South Australia) is Australia’s longest river. At 2,375 kilometres (1,476 mi) in length, the Murray rises in the Australian Alps, draining the western side of Australia’s highest mountains and, for most of its length, meanders across Australia’s inland plains, forming the border between New South Wales and Victoria as it flows to the northwest, before turning south for its final 500 kilometres (310 mi) or so into South Australia, reaching the ocean at Lake Alexandrina.
The region widely known as the food bowl of the nation
As of 2010, the Murray River system receives 58% of its natural flow. Australia’s most important irrigated region .
The water of the Mur Between 2.5 and 0.5 million years ago the Murray River terminated in a vast freshwater lake called Lake Bungunia. Lake Bungunia was formed by earth movement that blocked the Murray River near Swan Reach during this period of time. At its maximum extent Lake Bungunia covered 33,000 square kilometres (13,000 sq mi), extending to near the Menindee Lakes in the north and to near Boundary Bend on the Murray in south.
Murray flows through several lakes that fluctuate in salinity (and were often fresh until recent decades) including Lake Alexandrina and The Coorong before emptying through the Murray Mouth into the southeastern portion of the Indian Ocean, often referenced on Australian maps as the Southern Ocean, near Goolwa