Route 172 is an east/west highway on the north shore of the St. Lawrence River in Quebec, Canada, and it parallels the Saguenay River on the north side of it. The western terminus of Route 172 is in Saint-Nazaire at the junction of Route 169, and the eastern terminus is in Tadoussac, at the junction of Route 138. Municipalities along Route 172 Saint-Nazaire du Lac-Saint-Jean Shipshaw Saguenay (Chicoutimi) Saint-Fulgence Sainte-Rose-du-Nord Sacre-Coeur-Saguenay Tadoussac See also List of Quebec provincial highways References External links Provincial Route Map (Courtesy of the Quebec Ministry of Transportation) 172 Roads in Saguenay–Lac-Saint-Jean Transport in Saguenay, Quebec