Stone Mill Inn Weddings The Stone Mill Inn in St. Catharines has a beautiful Ballroom for your wedding! View Photos of Stone Mill Ballroom Stone Mill Address: 271 Merritt St, St. Catharines, ON L2T 1K1 Stone Mill Ballroom Photos Venues: Americana Beechwood Golf & Social House Weddings Casino Niagara Delphi DoubleTree Fallsview Jackson Triggs Winery Legends on the Niagara Navy Hall Weddings Old Court House Weddings Pillar and Post Queen Victoria Place Restaurant Queens Landing Weddings Ravine Winery White Oaks