大宮駅
The 12.7-kilometre that runs north from Ōmiya Station in Saitama, Saitama, alongside the Tohoku Shinkansen and Joetsu Shinkansen elevated high-speed lines through Ageo to Uchijuku Station in Ina in Saitama Prefecture in the Greater Tokyo Area is the only route that is run on the system. The line is double tracked from Ōmiya Station to Maruyama Station and single tracked from Maruyama to Uchijuku Station.