The 20th Anniversary 9-11 Remembrance Ceremony will be held Saturday, September 11, 2021 at 8:46 AM on the City College campus at MSU Billings Health Science Building, 3803 Central Avenue, Billings, MT. The event will include a C-130 aircraft flyover in honor of the many U.S. citizens that lost their lives during and following the events of 9-11. The event is open to the public. Enter the event off Shiloh Road.