sentences:  It narrows to a two lane road, with adjacent land along the northern side prepared for future northbound lanes, before encountering Ninth Line again.Quickly curving north then east, sandwiched between the neighbourhood of Greenborough and Little Rouge Creek, the route makes a final curve north to end at Major Mackenzie Drive on the northern edge of urban development in eastern Markham.A future extension, will carry Donald Cousens Parkway north, crossing over the Stouffville GO Train line on a new bridge and merging into the current southern terminus of Highway 48.