Click on any Secondary Highway route marker sign from the menu below to see a detailed history and a link to a route map of that highway, showing historical
re-routings and realignments. Most of the route maps are still under development and will be posted later. For all other Ontario Highways, please return to the
Main Highway List. Enjoy!
Photo at Right: Aboard the St. Joseph Islander Ferry linking Hwy 548 to Hwy 17 on the Mainland. Photo taken on August 31, 1953.
(Photo courtesy of Ontario Ministry of Transportation - © King's Printer for Ontario, 1953)
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