It has remained largely unchanged since then, aside from the reconstruction and realignment of the Frog Rapids bridge, and the renumbering of the fork towards Hudson as Highway 664.

From there it follows an old routing of Highway 17 along the northern edge of the village, but eventually turns to the north into the wilderness.

It zig-zags through the town, crossing the old Grand Trunk Railroad, now a Canadian National Railway line, next to a large rail depot.

[4] Sioux Lookout and Hudson were both originally accessible only by rail and water when they were established as stops on the Grand Trunk Railway shortly after 1900; roads would not reach the remote area until 1920.

[4] The following table lists the major junctions along Highway 72, as noted by the Ministry of Transportation of Ontario.