By 1957, the Great Northern Railway no longer had a need for the Casselton reservoir. They deeded the of land, which encompassed that body of water, to the City of Casselton. The reservoir was developed to be used as a municipal water supply until March 1978, when the city's water started to come from the Leonard Phase of the Cass Water Users System. The reservoir area has since been developed into a recreational center with softball diamonds, tennis courts, picnic tables and the like.