

TheChemin du Roy (Quebec French pronunciation:[ʃəmẽd͡zʏʁwɑ]; French for "King's Highway" or "King's Road") is a historic road along the north shore of theSt. Lawrence River inQuebec. The road begins inRepentigny and extends almost 280 kilometres (170 mi) eastward towardsQuebec City, its eastern terminus. Most of the Chemin du Roy today follows along the present-dayQuebec Route 138. The expressway that replaces both Route 138 and the Chemin du Roy through most of its course isQuebec Autoroute 40.

In 1706, the Conseil supérieur (Grand Council) ofNew France decreed that a road be built to connect the houses along the north shore of theSt. Lawrence River, betweenQuebec City andMontreal.[1] Work began in 1731, under the supervision of Grand Voyer (senior road surveyor) Eustache Lanouiller de Boisclerc, and was completed in 1737. Upon completion, the Chemin du Roy was 7.4 metres (24 ft) wide, over 280 kilometres (170 mi) long, and crossed 37seignories. The Chemin du Roy was the longest road in existence at the time inNorth America north ofMexico.
In 1910, the portion of the Chemin du Roy onMontreal Island was renamed by the District and County of Montreal asGouin Boulevard.[1] It is no longer considered part of the historic route and does not feature the "Chemin du Roy" route markers that the tourist route now is signed with.
Est to West, at the foot of theLaurentians, an eye on theSt. Lawrence River
Wild plants in ditches and roadsides
