Most of the volcanoes forming the magnificent Virunga Mountain range chain are dormant, except for Mount Nyiragongo at 3462m and Mount Nyamuragira at 3063m above sea level, in the DRC. The most recent eruptions date of 2006 and January 2010. The highest volcano is Mount Karisimbi with 4507m, with the oldest volcano being Mount Sabyinyo which lies at 3634m. Mount Bisoke, Mgahinga, Mikeno and Muhabura volcanoes are the other volcanoes within the Volcanoes National park. There is a crater lake, Lake Ngezi on Mount Bisoke.