Global Volcanism Program | Image GVP-05688
Yakushidake (center) is the summit cone of Iwatesan volcano and was constructed at the eastern end of the 1.8 x 3 km NishiIwate caldera. The N and S rims of the caldera form the ridges to the left and right, respectively. Both Yakushidake and a cone in the western caldera have been active in historical time.
Photo by Hidenori Togari, 1994 (Hokkaido University).