Mt. Leonard Kniazeff rises 1,190 meters or 3,904 feet above sea level. It lays serene on the basin of a vast fertile valley flanked by the highlands of the municipalities of Maco, Mawab, and Maragusan. A stratovolcano, it last erupted in 120 AD taking or minus 100 years. The Philippine Volcanology and Seismology (PHIVOLCS) describes Mt. Leonard Kniazeff as an active volcano.