the border with Uganda in the Kagera river immediately east of the Ugandan town of Kikagati, Kagera Region Easternmost point - Mnazi, Mtwara Region Easternmost point (mainland) - unnamed headland immediately east of the town of Mwambo, Mtwara Region Southernmost point - unnamed location on the border with Mozambique in the Ruvuma River, Ruvuma Region Westernmost point - unnamed headland immediately west of Ujiji, Kigoma Region References