Mount Hagen (), named after the German colonial officer Curt von Hagen (1859âÂÂ1897), is the second highest volcano in Papua New Guinea and on the Australian continent, ranking behind only its neighbour Mount Giluwe which is roughly to the south-west. It is located on the border between the Western Highlands and Enga Provinces, about north-west of the city of Mount Hagen for which it is named.
Mount Hagen is an old stratovolcano which has been heavily eroded during several Pleistocene glaciations. The maximum extent of the glaciers on Hagen was less than half that on the much higher Mount Giluwe, covering an area of up to and extending down below .