Eliza Murphy posted the route:

"The Cataraqui Trail is a year-round, shared-use recreation trail running [about 103km] from Smith Falls in the east to Strathcona in the west.

In spring, summer and fall it welcomes everyone from hikers to cyclists. In winter it is open to snowmobilers bearing a current Ontario Federation of Snowmobile Clubs trail permit. Cross-country skiers are welcome to share the trail."

www.cataraquitrail.ca/#!/rail-to-trail

These routes are described here: https://www.pc.gc.ca/en/pn-np/nl/grosmorne/activ/experiences/backcountry

Eric Batty posted the route with a detailed TR (8/19/2012):

A few weeks ago my wife [Eden] and I linked the North rim and the Long Range traverse in Gros Morne NP, Newfoundland. We did the 69.9km of trail route in 2 days 8hrs 25mins. It was one of the best routes I have ever done! 

https://www.canadiangeographic.ca/article/hiking-la-traversee-de-charlevoix

La Traversée is a 105-kilometre hiking, cross-country skiing and mountain biking route through the Laurentians in the Charlevoix region, a 560,000-hectare UNESCO Biosphere Reserve about an hour’s drive east of Québec on the north shore of the St. Lawrence River.

https://www.traverseedecharlevoix.qc.ca/

This is a 40km route along the north / east shore of the fjord in Parc National du Fjord-du-Saguenay (here in English), between Baie-Sainte-Marguerite and Tadoussac.