Duke University Press (2003)
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Akakura mountain is the name given to the north-east face of Mt. Iwaki, a quiescent volcanic cone that dominates the southern Tsgaru plain. The better known Iwaki mountain has three peak; Iwaki san shrine is located at its base, below a relatively smooth slope. Akakura mountain, in turn, also has three peaks, but is noted for its rough, volcanic surface and is dominated by a great gorge.
For an introduction to the mountain, see Immortal Wishes, pp. 32-36