 The Tagabo Hills are also known as the Kutum Volcanic Field, after the town of Kutum, or the Berti Hills after the Berti people.It contains well-preserved features, such as scoria cones, thought to be of the late Pleistocene or even as recent as the Holocene.However, a 1997 analysis ascribed the rocks only to the Paleogene/Neogene periods.