 The delineation of the Riverina region by government agencies and other bodies varies , but in common usage it generally comprises the agricultural and pastoral areas of New South Wales , west of the Great Dividing Range and in the drainage basin of the snow @-@ fed Murray and Murrumbidgee Rivers . The northern boundary beyond the Riverina is determined by the Lachlan River catchment area and is referred to as the Central West . Along the Murray to the south , the Riverina borders the state of Victoria . West of the confluence of the Murray and Murrumbidgee is the beginning of the more arid Far West region . 
