10/15/2026
Fun fact about Aguasabon Falls & Gorge. π
Just off the Trans-Canada Highway near Terrace Bay, Ontario, a 100-foot waterfall thunders over black cliffs and plunges into a gorge so ancient it predates complex life on Earth. It is one of the most photographed waterfalls on Lake Superior's north shore. And here is the twist almost nobody knows: this waterfall, in its present form, is barely 80 years old β while the gorge it falls into is 2.6 billion years old.
The Aguasabon Gorge is a scar in the Canadian Shield, a rock face laid down when the Earth was young, carved deeper by glaciers and the patient work of water over millions of years. The falls, though, are a child of the 1940s. In the late 1940s, engineers built the Aguasabon Hydro Development: a dam at the north end of Long Lake redirected an entire watershed southward, away from its ancient course toward Hudson Bay, to feed a new generating station. The goal was hydro-electric power for the soon-to-be Township of Terrace Bay β incorporated in 1959 β and its pulp mill.
The consequences were staggering. The spillway created the falls you see today. Hays Lake, just north of town, swelled to massive proportions. And because so much water was suddenly diverted south instead of north, water levels rose in Lake Superior β and, incredibly, in the rest of the Great Lakes. A single dam in northern Ontario nudged the waterline of an entire continent's inland seas. To this day the Ontario Power Generation Company manages the flow, and when the floodgates open after heavy rain, the falls can triple in size.
In spring the Aguasabon is a white beast of meltwater; by summer and fall it softens to a graceful veil. A wheelchair-accessible boardwalk leads to the lookout, and the falls open onto the Casque Isles Trail, a 53-kilometre lakeshore route linking five communities. Hikers push on to Danny's Cove, the Lower Aguasabon Falls, and Terrace Bay Beach.
So stand at the railing and feel the spray, and remember what you are really looking at: brand-new water falling through two-and-a-half billion years of stone. Where else in Canada does the ancient and the modern collide this beautifully?