Saint Catherine Street is the primary commercial artery of Downtown Montreal, Quebec, Canada. It crosses the central business district from west to east, beginning at the corner of Claremont Avenue and de Maisonneuve Boulevard in the city of Westmount, traversing the borough of Ville-Marie, and ending on Notre-Dame Street just east of Viau Street in the borough of Mercier–Hochelaga-Maisonneuve.
The street runs parallel to the largest segments of Montreal's underground city. The series of interconnected office tower basements and shopping complexes that make up this main thoroughfare lie immediately north of the street.
Wikipedia https://en.wikipedia.org/wiki/Saint_Catherine_Street
Address Rue Sainte-Catherine Ouest, Montréal, QC H3B 1H7, Canada
Coordinates 45°30'13.619" N -73°34'9.095" E