Hi There!
I picked up a map of Ontario at my local bike store earlier in the year, and it had several biking trails marked out on it. I'm in sales, and travel throughout SW Ont., and found this map to be excellent. I have to apologize, though. I left it at the last B&B I stayed at. If I locate another one, I will let you know. This map was specific to bikers, and had some nice 30 - 40 K tails mapped out, along with local bike shops.
Variety is the spice of life!
Trixiee