is a mountain on the border of the city of Minamibōsō, Chiba Prefecture, Japan with an altitude of . Mount Iyogatake is on the western side of Mineoka Mountain District of the Bōsō Hill Range, near Mount Tomi.伊予ヶ岳 The mountain takes its name from its resemblance to Mount Ishizuchi in Ehime Prefecture, formerly in Iyo Province.

Mount Iyogatake is one of the few mountains in the Bōsō Hill Range with steep rock cliff.南房総市富山 海と山 It can be easily climbed within 40 minutes. The entrance to the path of the mountain is between Heguri Elementary School and the Heguri Tenjin Shrine. Mount Iyogatake offers a clear view of the other mountains of the Bōsō Hill Range and Tokyo Bay,伊予ケ岳(南房総市) and on clear days Mount Fuji and the Izu Islands are also visible.伊予ヶ岳 いよがたけ

Mount Iyogatake and the Heguri Tenjin Shrine are associated with a legend of a tengu, a supernatural creature found in Japanese folklore.伊予ケ岳の天狗

Transportation The path to the peak of Mount Iyogatake is accessible by bus from the JR East Uchibō Line Iwai Station in Minamibōsō.

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