Quebec route 143
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Highway 143 (or Route 143) is a north/south highway on the south shore of the Saint Lawrence River. Its northern terminus is in Saint-François-du-Lac at the junction of Route 132, and the southern terminus is in Stanstead at the border with Vermont where the road continues as U.S. Route 5 in Derby Line.
Since Autoroute 55 closely parallels Route 143 for most of its length, it is not a very busy highway. Route 143 closely follows the Saint-François River between Sherbrooke and Ulverton.