Hokkaido Official Tourism Site HOKKAIDO LOVE!

Rising 1,131 meters above the Oshima Peninsula, this active volcano is defined by its jagged ridgeline and vast slopes, offering a breathtaking landscape chosen as one of Japan’s New Three Scenic Views.

Mt. Komagatake was once a perfect, soaring cone reminiscent of Mt. Fuji. However, a massive eruption in 1640 caused the summit to collapse, sculpting the dramatic silhouette seen today. The mountain now features a series of rugged summits, including the sharp main peak of Kengamine and the rocky crest of Mt. Sawaradake. Its appearance shifts beautifully depending on your vantage point—resembling a majestic, crouching sphinx from one angle, and a graceful, solitary peak from another. As the beloved icon of Onuma Quasi-National Park, the mountain’s seasonal colors mirrored in the lake throughout the seasons continue to captivate all who visit.

Step onto the mountain trail and you will immediately feel the raw energy of the earth through the crunch of volcanic gravel underfoot. The refreshing scent of larch forests drifts through the air, while the gentle rustle of leaves provides a peaceful soundtrack to your ascent. As you climb higher, the horizon expands into a stunning panorama: the deep blue waters of Lake Onuma and Lake Konuma sparkle below, and on clear days, the view stretches across the Tsugaru Strait to the distant hills of Aomori Prefecture. Wrapped in crisp, cool air, Mt. Komagatake offers an unforgettable experience shaped by the silent, powerful forces of Hokkaido’s earth.