Ubobo is a rural town in the locality of Boyne Valley in the Gladstone Region, Queensland, Australia. Ubobo is located south of Gladstone …Ubobo is a rural town in the locality of Boyne Valley in the Gladstone Region, Queensland, Australia. Ubobo is located south of Gladstone and Calliope along Highway 69 in Central Queensland, Australia. It is one of four small townships within the locality of Boyne Valley, along with Nagoorin, Builyan, and Many Peaks.