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York Regional Road 25: Wikis


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17th Avenue.PNG

York Regional Road 25
Major Mackenzie Drive, 17th Avenue
Length: 35.3 km (22 mi)
West end: Huntington Road
East end: YRR30.png York-Durham Line
Counties: York Region
Major cities: Vaughan
Richmond Hill
York Regional Road 25 looking east near its intersection with York Regional Road 8.

Major Mackenzie Drive, officially referred to as York Regional Road 25 and also commonly known as "Major Mac", is a major east-west arterial road in southern York Region, Ontario, Canada. Parts of the road is named 17th Avenue, and was a rural road, but with growth in York Region expanding beyond Highway 7, the road is now heavily travelled and is becoming more of an urban thoroughfare. The road was named after Major Addison Alexander Mackenzie, a former provincial politician and World War I veteran.[1]

The road's western end is broken by both the Humber River and York Regional Road 27. It continues west of York Regional Road 27 until it reaches Huntington Road and becomes Coleraine Drive. The broken sections east of York Regional Road 27 continue as Humber River Trail with section broken by the Humber. The eastern end of Major Mackenzie is also broken at Ninth Line and becomes 17th Avenue to the York-Durham Line.

The road passes through 3 municipalities in York Region, but it does not connect with other roads outside of York Region:


Road Information

  • Municipalities (from east to west): Markham, Richmond Hill, Vaughan
  • Length: 35.3km (York Regional Road 25), 36.9km (Major Mackenzie Drive), 3.6km (17th Avenue)
  • Transportation: Mainly YRT Route 4 and 4A, Major Mackenzie Vivastation on the Viva Blue line
  • Attractions: Kortright Conservation Area, Canada's Wonderland, Eagle's Nest golf course, Angus Glen golf course, Rouge Park
  • Road Status:
  • Zoning: Mainly low density residential in Vaughan and Markham, some developing, medium density in Richmond Hill,
  • Speed: Anywhere from 50-80 km/h with 60 km/h being the most common,


The road was laid out by early settlers in the region to divide the land into farms. Much of the farmland is now gone, as residential development expands in York Region towards the north. Environmentalist and urban planners want the region and province to halt the development of land north of the street, particularly to maintain the well-being of the Oak Ridges Moraine.

Major roads/highways that cross Major Mackenzie/17th

(from west to east)


  1. ^ York University Archives


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