Before it became a campground, Camp Mueller opened in 1941 as an overnight youth camp run by Cleveland's Phillis Wheatley Association, founded by social worker Jane Edna Hunter. Its early program served African American girls; by the early 1960s, the camp was described as interracial while remaining predominantly Black. It was named for benefactor Ralph S. Mueller, who bought land for the camp. Young campers swam, made crafts, studied nature, and performed here, giving the place a history that reaches beyond its current role as a place to sleep.