Superior-Greenstone DSB Pub Dist Sch Brd (E/F) ｜ Ontario Board Information Website http://www.sgdsb.on.ca Schools in Superior-Greenstone DSB 15 schools. B A Parker Public School Geraldton | Grades JK-8 Beardmore Public School Beardmore | Grades JK-8 Dorion Public School Dorion | Grades JK-8 George O'Neill Public School Nipigon | Grades JK-8 Geraldton Composite School Geraldton | Grades 9-12 Lake Superior High School Terrace Bay | Grades 9-12 Manitouwadge High School Manitouwadge | Grades 9-12 Manitouwadge Public School Manitouwadge | Grades JK-8 Marathon High School Marathon | Grades 9-12 Margaret Twomey Public School Marathon | Grades JK-8 Marjorie Mills Public School Longlac | Grades JK-8 Nakina Public School Nakina | Grades JK-8 Nipigon Red Rock District High School Red Rock | Grades 9-12 Schreiber Public School Schreiber | Grades JK-8 Terrace Bay Public School Terrace Bay | Grades JK-8