Mississauga and Brampton The street begins in Mississauga at
Lakeshore Road in Port Credit, which forms after the end of St Lawrence Drive, a fairly short street. North of the
Canadian National rail underpass, it enters the low-density residential district of Mineola, which extends north to the
Queen Elizabeth Way. Then it enters the
Cooksville neighbourhood, a higher-density area of highrises and commercial development. At
Burnhamthorpe Road, Hurontario passes through Mississauga's City Centre, with the
Absolute World condominium towers rising at the northeast corner. After crossing
Highway 403, it passes by more high-rise condominiums and suburban mid-density development until it approaches Matheson Boulevard, where a preserved historic farmstead, the Britannia Farm, operated by the
Peel District School Board, is located. The road then enters an industrial and commercial area, still under development, which extends beyond
Highway 401 all the way to the city limits near
Highway 407. Hurontario then enters Brampton, where it changes name to Main Street after crossing
Steeles Avenue. Main St. runs alongside the
Etobicoke Creek valley until reaching Brampton's downtown, where it passes landmarks such as
Gage Park,
Brampton City Hall, and the
Rose Theatre Brampton. At
Bovaird Drive (formerly Highway 7), the name Hurontario resumes, and the street passes through a lengthy mixed residential/industrial
rural-urban fringe zone until it reaches
Highway 410 at Brampton's northern city limits.
Caledon to Collingwood At Highway 410, the Highway 10 designation begins as the street enters rural Caledon, and it has a discontinuity through the interchange as it defaults onto Valleywood Boulevard northbound and the 410 southbound, with ramps connecting the two sections. The road continues northward as the undivided four-lane Highway 10 until reaching Orangeville, where the highway leaves the Hurontario Street alignment to head for the City of Owen Sound, although it parallels it very closely for 21 km. (13 mi.) as it follows First Line WHS. The reason for the highway's chosen alignment was due to a desire to pass through Orangeville's business district farther to the west (before the construction of its present bypass), and in the case of the former
Highway 24 segment to the north, difficult terrain through the
Niagara Escarpment. In Orangeville, it runs as a residential side street through the town's eastern fringe and breaks at the
Orangeville Reservoir. In
Mono, it resumes as a minor sideroad to
Highway 89, where it breaks again. It picks up again north of
Boyne Valley Provincial Park through Mulmur and Clearview townships as a series of broken minor roads with several names (including its historic alternate name; Centre Rd.), running through the hamlets of Dunedin and Glen Huron. North of Glen Huron, it becomes a major road again as it joins
Simcoe County Road 124 (which, along with Highway 10, carries the Orangeville-Collingwood through traffic south of this point), until its terminus in Collingwood at Side Launch Way, one block north of First and Huron Streets (
Highway 26). The final block is a short one-way northbound extension built in 2009 to serve a residential redevelopment project on the site once occupied by the now-closed
Collingwood Shipyards. ==Public transit==