Northern High School's rival schools in size and sports during the 1980s were : Broughton High School Enloe High School Millbrook High School Sanderson High School Cary High School ( in Wake County North Carolina ) Chapel Hill High School and Orange High School ( all in Orange County North Carolina Grimsley High School and Page High School ( in Guilford County NC ) South Mecklenburg High School ( in Mecklenburg County North Carolina ) Hillside High School ( in Durham North Carolina ) and the then smaller Person High School ( in Person County North Carolina ) .