Hakodate Port's opening accompanying, the Shogunate as for Ezochi's defense to strengthen for the purpose of, Matsumae Domain had constructed a jinya.
In Meiji Gannen (1868)'s Hakodate War, accompanying the Shogunate Defecting Army's advance, by the guard unit's hands, it was self-burned and abandoned, and currently, as for National Designated Cultural Property as, it is being managed.

As a historic site park, it is maintained, and besides being able to stroll within the main camp enclosure that retains the appearance of that time, the approximately 800m cherry blossom tree tunnel continuing from the prefectural road to the jinya ruins is known as a famous cherry blossom spot. In autumn, the autumn leaves within the enclosure delight the eyes.