The Smithsonian Institution's Global Volcanism Program list Binuluan under Ambalatungan Group. The dacitic little-known cluster of volcanoes [called Ambalatungan by Alvir (1956) and the Philippine Commission of Volcanology (1981), and as Mount Binuluan by Wolfe (1982)] was described as consisting of three volcanoes constructed along a roughly E-W line. Binuluan volcano contains a steep-walled crater with hot springs and vigorous sulfur-encrusted fumarolic vents that produce loud noises. Bumabag volcano, east of Binuluan, has two craters that also show strong fumarolic activity. Podakan volcano, SE of Bumabag, also has a large steam vent. The Bumabag and Podakan volcanoes could possibly be flank vents of Mount Binuluan.