| Mount Hagen | |
| Elevation M: | 3765 |
| Elevation Ref: | [1] |
| Prominence: | >900-2NaN-2 |
| Range: | Hagen Mountains |
| Listing: | Volcanoes in Papua New Guinea |
| Location: | Western Highlands and Enga Provinces, Papua New Guinea |
| Map: | Papua New Guinea |
| Label: | Mount Hagen |
| Label Position: | right |
| Type: | Eroded stratovolcano |
| Age: | 210,000–380,000 years[2] |
| Last Eruption: | ~ 210,000 years ago |
Mount Hagen (German: Hagensberg), named after the German colonial officer Curt von Hagen (1859 - 1897), is the second highest volcano in Papua New Guinea and on the Australian continent, ranking behind only its neighbour Mount Giluwe which is roughly 35km (22miles) to the south-west. It is located on the border between the Western Highlands and Enga Provinces, about 24km (15miles) north-west of the city of Mount Hagen which is named after it.
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 50 km2 (20 mi2) and extending down below 3,400 m (11,000 ft).[3]