| Mount Sukai | |
|---|---|
 View on Mount Sukai from Mount Nokogiri. | |
| Highest point | |
| Elevation | 2,144 m (7,034 ft) |
| Coordinates | 36°41′24″N 139°20′13″E / 36.69000°N 139.33694°E |
| Naming | |
| English translation | 皇海山 |
| Language of name | Japanese |
| Pronunciation | Japanese: [sɯ̥kaisaɴ] |
| Geography | |
  Mount Sukai | |
| Parent range | Ashio Mountains |
| Geology | |
| Mountain type | Stratovolcano |
| Climbing | |
| Easiest route | Hike |
Mount Sukai (皇海山, Sukai-san) is a stratovolcano in Japan. The 2,144-metre-high (7,034 ft) peak lies in the Ashio Mountains of Japan, on the border of Nikkō in Tochigi Prefecture and Numata in Gunma Prefecture. Mount Sukai is an old stratovolcano, but with the whole mountain covered in forest today it does not appear like a typical volcano.