The Algoma Central Railway (AAR reporting marks AC, ACIS) was a railway in Northern Ontario that ran between Sault Ste. Marie and Hearst, with a branch line to Michipicoten. The area served by the railway is sparsely populated, with few roads. The railway is well known for its Agawa Canyon tour train. The railway was purchased by Wisconsin Central in 1995, which was in turn purchased by Canadian National Railway in 2001. It is now operated as part of CN's Eastern Division.