Contributed by Peter Rotheisler
The Scarborough Bluffs stand approximately 100 metres (350 feet) above Lake Ontario at their
highest point. The lakeshore along the Bluffs is comprised of a low bluff of rock, till, clay and/or
glacier sediment, with a narrow beach at the base of the Bluffs. The intersection of older and higher
glacier and lake deposits have produced these impressive Scarborough Bluffs - spectacular cathedral
like cliffs which rise as high above the lake which are unique to the area.