The Gunbower_Benjeroop Salinity Province covers a large area from northwest of Echuca along the Murray River to about 20km southeast of Swan Hill.
The Province includes the protected wetlands of the Gunbower Forest and Island, a depositional basin that contains a number of still water channels and miscellaneous floodplain depressions, while a number of intermittent terminal lakes also occur within the province. A high impact, regional scale Groundwater Flow System (GFS) drives salinity into the river and billabong system, while the overlying local to intermediate scale GFSs in the surface alluvial and aeolian sediments are responsible for some minor groundwater induced secondary salinity around the lake system. The province is an important recreational area and recently initiated environmental flows now occur within the Gunbower Forest. High watertables of moderate to high salinity have been recorded along the southwestern edge of the forest, presumably due to irrigation of the nearby farmland.
Salinity in the irrigated private land is managed through an integrated program of improved irrigation efficiency, control of high watertables and supported environmental protection works.