| Mount Tarumae | |
| Other Name: | 樽前山 |
| Elevation M: | 1041 |
| Elevation Ref: | [1] |
| Listing: | List of mountains and hills of Japan by height List of volcanoes in Japan |
| Location: | Hokkaidō, Japan |
| Map: | Japan#Japan Hokkaido |
| Range: | Nasu Volcanic Zone |
| Coordinates: | 42.69°N 141.3781°W |
| Coordinates Ref: | [2] |
| Topo: | 50000:1 樽前山, 25000:1 樽前山, 25000:1 風不死岳 |
| Type: | Caldera |
| Volcanic Arc/Belt: | Northeastern Japan Arc |
| Last Eruption: | 1982[3] |
| Easiest Route: | Hike |
is located in the Shikotsu-Toya National Park in Hokkaidō, Japan. It is located near both Tomakomai and Chitose towns and can be seen clearly from both. It is on the shores of Lake Shikotsu, a caldera lake. Tarumae is a 1,041 metre active andesitic stratovolcano, with a lava dome.
The most recent eruption, in 1982, was a phreatic eruption.[4] Previous major eruptions have occurred in 1667, 1739 (plinian eruption of VEI 5[5]), and 1909. The 1667 and 1739 eruptions were responsible for its present shape. Other eruptions were in 1919–21, 1923, 1926, 1933, 1936, 1944, 1951, 1953–55, and 1978.[6] Tarumae is an 'A' rank volcano — most likely to erupt in the relatively near future.[4]
Designated as a Hokkaido Natural Monument, it is popular as an easy climb for hikers who may start at the seventh station and then take an hour to reach the crater.
At the foot of Tarumae on the north-west side one can find an impressive moss-covered cavern (Koke-no-domon).