Some legends say that 大江山 (Mt. Oe) in the Shuten Doji folk stories (stories about the leader of a group of bandits that roamed the area) indicates in fact this 大枝山 (Mt. Oe), and a kubi-zuka (a mound where a head is buried) where the head of Shuten Doji is said to have been buried still exists on the south side of Oino-saka-toge Pass.
酒呑童子の「大江山」をこの大枝山の事だとする伝説もあり、老ノ坂峠の南側には現在も酒呑童子のものと伝えられる首塚が置かれている。