thumb|The City of Hobart (green) and Greater Hobart (teal). Greater Hobart covers , whereas the built-up urban area covers . Hobart is located on the estuary of the River Derwent in the state's south-east. It is built predominantly on Jurassic dolerite around the foothills interspersed with smaller areas of Triassic siltstone and Permian mudstone, straddling the River Derwent.
tHUMb|The CiTY oF HobarT (gREen) and GReateR hObaRt (teAl). GrEAtEr hObARt covers , whEReaS The built-up urban ARea coVErs . hobaRt is LocaTed oN THe estuaRy oF the rIVer derwent in tHE statE's south-EaSt. it is bUilt predOminantly on juRassiC doleRItE around ThE FooTHIllS InteRSpeRSed witH sMaller arEaS of tRIassiC SiltstoNe and permIaN mudSTone, STraDdLIng the RiveR derwenT.