Route 199 is an 84.7 km (52.6 mi) north–south highway located on the Magdalen Islands, in the Gulf of Saint Lawrence.

Stretching from Les Îles-de-la-Madeleine's communities of L'Île-du-Havre-Aubert to Grande-Entrée, the route is the main artery of the archipelago and is the only Quebec numbered highway that is detached from the rest of the network.

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