Ontario's Cliffs Are Hiding Something Most Canadians Never Notice

Ontario's cliffs hide a canal where ocean ships climb a cliff like a staircase, a drowned silver mine under Lake Superior, and cedar trees clinging to rock faces that were already a thousand years old before anyone noticed. Retired bush pilot Bob MacLeod spent forty-one years flying over this province, and here he counts down twenty-five facts about Ontario's cliffs that most lifelong Canadians have never heard. From the Niagara Escarpment to the Scarborough Bluffs to the Sleeping Giant near Thunder Bay, every one of these walls is stranger than the view from the highway.