In addition, there was a plan to build a rail road between Nishi-Maizuru and Miyazu Stations across the mountain pass by jutting out at the Yura-gawa River and running it north along the river, but construction proved difficult and it was constructed on the current route (Kitakinki Tango Railway Miyazu Line Nishi-Maizuru Station - Tango Kanzaki Station).
また、大正には、西舞鶴駅－宮津駅間の鉄道敷設に際し、当初、この峠を経て由良川に出、川沿いに北上させる計画であったが、工事に困難を極め、現在のルート（北近畿タンゴ鉄道北近畿タンゴ鉄道宮津線西舞鶴駅～丹後神崎駅）に敷設された。