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Route 391 is a provincial highway located in the Abitibi-Témiscamingue region in southwestern Quebec near the Ontario border. The 90 km (56 mi) road runs from the junction of Route 101 near St-Édouard-de-Fabre and ends in Rouyn-Noranda at the junction of Route 117. Between Lorrainville and Laverlochère-Angliers, it overlaps Route 382. Near Rollet, it is also concurrent with Route 101.