sentences:  The trees around Whitwarta have suffered in recent years because of the rise of salinity in the soil.The National Trust of South Australia has listed a stand of "Eucalyptus largiflorens" (River Box) at Whitwarta on the significant tree registrar.These trees, which are located approximately north of the River Wakefield and about west of the Halbury-Whitwarta intersection, are the only Eucalypts of their kind in the district.