The main units of the Shogunate forces, including the main force of the Shinsengumi led by Toshizo HIJIKATA, set up camp in Hashimoto, a posting station with a red-light district, to the west of the mountain.
西側の橋本は遊郭のある宿場で、そこには土方歳三率いる新撰組の主力などを擁する幕府軍の本隊が陣を張った。