CIRS (AM)  CIRS was a Canadian radio station, broadcasting at 530 AM in Sault Ste. Marie, Ontario. Owned and operated by Rogers Radio, the station broadcast a tourist information format for travellers crossing the Sault Ste. Marie International Bridge. The station is now listed as silent in the CRTC databases and has been off the air since 2010. The station was licensed by the CRTC in 1986.