Not all are "wilderness" but....
Posted by: mister123 on Aug-04-12 11:44 PM (EST)
Check out the Northern Forest Canoe trail. Allagash, West Branch of the Penobscot, Moose River, Moose River Bow Trip, Missisquoi, West River White River, Machias, Upper CT. River, Androscoggin, St John river, Dead River, and probably more.
Not all are passable in the summer