This map depicts the distribution and potential severity of dryland salinity based on biophysical factors that are known to cause dryland salinity. The mapping shows four classifications of salinity potential:; 1.Areas of Known Salinity ; 2.Areas of High Salinity Potential ; 3.Areas of Moderate Salinity Potential ; 4.Areas of Very Low Salinity Potential ; The map and accompanying guidelines are an extension of (and incorporate) the previous work, Draft Salinity Hazard Map for Western Sydney. They cover the Wianamatta Shales geological group on the Cumberland Plain, which essentially covers the area of Western Sydney, north to Windsor and south to Campbelltown.