page_title: Quebec Autoroute 20
section_title: Autoroute du Souvenir
hierarchical_section_title: Quebec Autoroute 20 / Description / Autoroute du Souvenir
caption_attribution_description: The unceremonious end of Highway 401 at km 828, facing east into Quebec
context_page_description: Autoroute 20 is a Quebec Autoroute, following the Saint Lawrence River through one of the more densely populated parts of Canada, with its central section forming the main route of the Trans-Canada Highway from the A-25 interchange to the A-85 interchange. At 585 km, it is the longest Autoroute in Quebec. It is one of two main links between Montreal and Quebec City; the other is the A-40.
  There are two sections of the A-20, separated by a 57 km gap. The mainline extends for 540 km from the Ontario border to its current terminus at Trois-Pistoles. The second, more northerly section is far shorter. Constructed as a super two autoroute, this section of the A-20 bypasses Rimouski to the south and ends at a roundabout junction with Highway 132 in Mont-Joli. While the Quebec government has completed environmental and economic reviews of the impact of linking the two sections of Autoroute 20, it has not committed the funds necessary for construction.
caption: The ending of Ontario Highway 401 marks the beginning of Autoroute 20.
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