| Mount Kupreanof | |
|---|---|
 Steam plumes (center) rising from a prominent fumarole on the upper south-southwest flanks of Mount Kupreanof. | |
| Highest point | |
| Elevation | 1,895 m (6,217 ft) |
| Listing | List of volcanoes in the United States |
| Coordinates | 56°06′36″N159°47′49″W / 56.11°N 159.797°W |
| Geography | |
 | |
| Location | Lake and Peninsula Borough, Alaska, United States |
| Geology | |
| Formed by | Subduction zone volcanism |
| Mountain type | Stratovolcano |
| Volcanic arc | Aleutian Arc |
| Last eruption | March 1987 (uncertain) |
Mount Kupreanof is a stratovolcano on the Alaska Peninsula, United States. It is the largest and the northeasternmost in a group of five volcanoes opposite from Stepovak Bay. Mount Kupreanof displays extremely strong fumarole activity and its latest eruption in 1987 produced minor steam and ash emission. [1] This is the only known historical eruption from Mount Kupreanof.
