 The New South Wales Parks and Wildlife Service has divided New South Wales into 17 distinct bioregions. Bioregions are quite large areas of land that capture a geophysical pattern which is linked to fauna and flora ecosystems. The Riverina bioregion is an area of land that comprises part of the larger Riverina area but also extends into Victoria. It has been defined by the New South Wales Parks and Wildlife Service as extending from Ivanhoe in the Murray Darling Depression Bioregion south to Bendigo, and from Narrandera in the east to Balranald in the west. 74.03 % of the bioregion is in New South Wales, the remainder in Victoria.
