When heading to Miyazu City from Maizuru, the Ofuna-toge Mountain Pass was used before this mountain pass was available; however, this mountain pass became available in the Meiji period in response to a request by local people, and works as a bypass road at present.
同峠の開通以前の舞鶴から宮津市方面へは向かう場合は大船峠が利用されていたが、明治時代に地域の要望で開通、現在ではバイパス道路としての機能も有している。