Kushigamine, Volcanic summit in Hirakawa and Kuroishi, Japan.

Kushigamine is a volcanic summit straddling the border between Hirakawa and Kuroishi in Aomori Prefecture. The mountain rises to roughly 1,500 meters and shapes the northern landscape with its cone-like silhouette.

The mountain formed through ancient volcanic eruptions that shaped northern Japan's geology. This volcanic activity created the cone that today marks the boundary between the two municipalities.

The name Kushigamine comes from the mountain's profile as seen from the east near Komagamine, which resembles a boxwood comb (tsuge no kushi). A collapsed hokora near the summit holds a stele inscribed with the history of the mountain's opening; it records that the climbing trail was built in October 1956. Hikers who follow the old, now-abandoned route down from the summit can still find this monument.

Access is via trails from Sarukura Onsen or the Onoshibeyama summit car park, on a road built in 1933–34 and now largely closed to cars. Erosion and plant growth make parts hard to walk, and some sections are impassable after rain. Most climbers come before mid-May on skis, since snow-free ascents take the longest of any Hakkōda peak.

The summit's former trail, built as a road in 1933–34, is now abandoned; descending it leads to the ruins of a small shrine whose inscribed stone records that the climbing path up Kushigamine was cut in October 1956.