The Scotch Road is a significant historical North-South road running through the rugged foothills of the Laurentian Mountains of Grenville-sur-la-Rouge, Quebec, Canada. It runs from its southern junction with Autoroute 50 and Route 148 near the border with the Village of Grenville, to its northern junction with the Harrington Road near Harrington. For most of its history, the Scotch Road was the main transportation route between the Village of Grenville and the once-bustling mining village of Kilmar, Quebec, situated in the hills along the Ottawa River between Ottawa and Montreal in the Laurentides region of western Quebec. It historically has served as the sole access route for the communities of McGillivray Lake, as well as the once-flourishing Scotch Road settlement.