This image shows the train at its final destination for the tour, the otherwise inaccessible Agawa Canyon. To this date the canyon is accessible only to hikers and the train. The exceptional length of the train is clearly visible from this image.
The description states:
View from the Lookout of beautiful Agawa Canyon, final destination of the Algoma Central Railway Wilderness Tour.
–What appear to be small lakes are the meanders of the Agawa River, which carved the valley after the last Ice Age. This postcard dates from the 1960s.