sentences:  The next year, the highway had been given a graded dirt surface, and was designated as part of the Great White Way auto trail, as well as the Banff Grand Canyon Road.Between 1925 and 1927, the auto trail designations were removed from the stretch of highway near present-day MT 87.By 1937, the main highway had been shifted north of the location of MT 87, and had been numbered as State Highway 1.