A Vacation at the Niagara Falls

18,000 years ago, planet earth saw the last of the Ice age. Apparently, the ice around Ontario - which forms the Great Lakes region of which the Niagara River is part of - was covered with ice as thick as 2-3 kilometers. The Ice subsided around 12,500 years ago and gave way to the Great Lakes Basin comprising of Lake Erie, Lake Ontario, The Niagara River, and further down the St. Lawrence River