Hurontario Street is a roadway running in Ontario, Canada between Lake Ontario at Mississauga and Lake Huron's Georgian Bay at Collingwood. Within the cities of Mississauga and Brampton, it is a major urban thoroughfare, which serves as the divide from which street numbering is split into east and west except (due to nostalgic reasons) at its foot in the historic Mississauga neighbourhood of Port Credit. Provincial Highway 10 utilizes the road through the rural Town of Caledon as far north as Orangeville. The highway designation formerly continued south through Brampton and Mississauga, but the highway was downloaded through both cities in 1997 due to its increasingly urbanized nature and the presence of the 400-series Highways 410 and 403.