Oboke Gorge (大歩危峡) 大歩危峡
Natural Monument since 2014: the Yoshino River has cut for kilometres through blue-green schist.
Gorge carved out along the upper reaches of the Yoshino River, Miyoshi municipality: the rock formation belongs to the Sambagawa metamorphic belt. National Natural Monument since 18 March 2014, Place of Scenic Beauty (名勝) since 7 October 2015, extended to the Koboke section on 13 February 2018. The JR Dosan Line runs through it, with its own station (Ōboke).
Tokushima