地質陰影図。多良岳は、有明海の西側にある開析された大型の成層火山。Lは新期安山岩、Eは古期安山岩。周囲には火山麓扇状地（V）が発達する。

Topographic relief of Taradake Volcano combined with geological map. Taradake is a large dissected stratovolcano located on western Ariake Bay. It consists of younger andesite (L) and older andesite (E). Well-developed volcaniclastic fans (V) extend to the foot of the volcano.