First, Canada is part of the North American continent. Second, you will find information for areas outside of that geographical area, too, on this forum. Be sure to check the appropriate Regional Discussion Area. And third, I've got a couple of links for you.
This one is for the Route Verte in Quebec, www.RouteVerte.com.
This one is for a system ranging across the entire country. It is not complete but may be enough to get you started, www.TcTrail.ca.