[2] The mountain is part of the Tawau volcanic field which contributed to the prominent topographic features of the Semporna Peninsula in northeastern Borneo and the western side of a valley in its middle section.

[3][4][5] The low volcanic cone is north of Sebatik Island and has a roughly 300-m-wide crater breached to the south.

Two young lava flows extend almost to the coastal plain.

The flows are considered younger than a lava flow radiocarbon dated at about 27,000 years before present, and the extrusion of basaltic lavas possibly continued into the Holocene epoch.

[6] Presence of geothermal activity has been reported in the surrounding mountains.