The route of the ancient Tōsandō highway passed through what is now this park. In the year 1333, Nitta Yoshisada established a campaign headquarters and raised his army's banner on a mound in what is now part of the park during the Kōzuke-Musashi Campaign against the Kamakura shogunate. This mound was either an ancient kofun burial mound or a Fujizuka mounded dedicated to the worship of Mount Fuji, but is now known as the . This location is commemorated by a stone marker at the park's north eastern end.