▁railway ▁station ▁ ▁Geography ▁▁ ▁The ▁River ine ▁P lain ▁is ▁an ▁all uv ial ▁plain ▁consisting ▁of ▁sed iments ▁of ▁s ilt , ▁cl ay ▁and ▁fine ▁sand ▁depos ited ▁by ▁the ▁extensive ▁ancest ral ▁streams ▁of ▁the ▁early ▁Qu atern ary ▁period ▁( over lying ▁more ▁ancient ▁gran ite ▁rocks ▁and ▁sed iments ).   ▁ ▁The ▁snow - f ed ▁M urr umb idge e ▁River ▁flows ▁west wards ▁across ▁this ▁plain ; ▁to ▁the ▁north ▁its ▁major ▁trib ut ary , ▁the ▁L ach lan , ▁flows ▁in ▁a ▁long ▁arc ▁until ▁the ▁two ▁rivers ▁join ▁in ▁a ▁ma ze ▁of ▁re ed - bed ▁sw amps ▁and ▁channels ▁between ▁Hay ▁and ▁Bal ran ald .   ▁ ▁South ▁of ▁the ▁M urr umb idge e ▁the ▁Bill ab ong ▁Creek ▁is ▁fed ▁by ▁a ▁variety ▁of ▁streams , ▁and ▁eventually ▁flows ▁into ▁the ▁Edward ▁River ▁( an ▁an ab ranch ▁of ▁the ▁Murray ▁River ).   ▁Plant ▁communities ▁along ▁the ▁river ▁cor rid ors ▁near ▁Hay ▁typically ▁consist ▁of ▁for ests ▁domin ated ▁by ▁River ▁Red ▁G um ▁( E u cal y pt us ▁cam ald ul ensis ), ▁with ▁Black ▁Box ▁trees ▁( E . ▁larg if lor ens ) ▁on ▁the ▁outer ▁marg ins ▁and ▁in ▁low - lying ▁areas ▁further ▁from ▁the ▁river . ▁ ▁A way ▁from ▁the ▁river ▁Hay ▁is ▁surrounded ▁by ▁flat , ▁mostly - tre eless ▁pla ins , ▁pre domin ately ▁of ▁grey ▁cl ay ▁and ▁red ▁earth ▁so