Kozenji is a temple built by Mogami Yoshiaki. In the precincts, there is a graveyard of Mogami Yoshiaki and a pond garden - a scenic spot designated by Yamagata City.
Behind the main hall is the Enshu style Shin-ji Pond garden, built in the early Edo period said to be one of the oldest gardens in Yamagata prefecture. In the pond, there are several islands centered on stonework, moss and decorated with azaleas.