The Basin has 23 major rivers. Almost 4 million people rely on water from these rivers and catchments for the survival of their families, communities and industries. Animals and plants have evolved and adapted to the seasonal patterns of water flow through the Basin’s rivers
Most of the water in the Basin comes from the southern and western sides of the Great Dividing Range, flowing into the 23 major rivers, including Australia’s 3 longest, the Murray, Murrumbidgee and Darling rivers. High evaporation rates, expansive floodplains and significant water diversions for towns and agriculture mean that much of the surface water in the Basin does not reach the ocean.