In the 1960s, the railway began to promote the natural beauty of the District of Algoma to tourists, especially the Agawa Canyon, a canyon carved by the Agawa River, located 114 rail miles (183 km) north of Sault Ste. Marie, and not accessible by road. The Algoma Central developed a tourist stopover here and it proved to be a great success for the railway. Owing to the popularity of the Agawa Canyon excursions, the Algoma Central would run the longest passenger trains in North America, often up to 20 to 24 cars long. During the 1970s and 1980s, around 100,000 people per year would tour Agawa Canyon.