St. Catharines General Hospital  St. Catharines General Hospital was a general hospital established in 1865 in St. Catharines, Ontario, Canada serving the Niagara Region. First established in as a general and marine cottage hospital, it moved to its location in 1870. The building was later sold. The hospital was closed on March 24, 2013 at 6:00 AM once the new St. Catharines Site was opened.