A while back, they went north, but I don't think they scratched the surface of what's up there.
Launch from Chelsea (pick Flanny's brains for good stuff north from there), head up past Ste-Anne-du-lac (good motel there, inexpensive), then take the trails to Clova for the night. Next head easterly to the old runway at Casey (choice of trail or great gravel), after which head southwest to Fer a Cheval for the night (fun trail with a self-propelled ferry). Then pick your poison for the run home. Can also go up to Barrage Gouin, bend east to Chicoutimi, then south towards Maine.
Lots more choices there, too. Lots.
South hombre, the setting sun to the right until we are out gas, cash or goddamn snow.