Which region contains most of Western Australia’s surface freshwater resources?

The Kimberley region contains approximately three-fourths of Western Australia’s surface freshwater resources.1

This northern region is home to the state's two principal rivers, the Fitzroy and the Ord. The latter has been dammed to create Lake Argyle, which is Australia’s largest freshwater lake. In contrast, much of the rest of the state is characterized by inland drainage systems that are often saline or ephemeral.2