The draining of Niagara Falls along the American side in 1969. credit: cbc | Old Ontario Series

🌊 On This Day | June 12, 1969 55 years ago today, something truly remarkable happened at Niagara Falls. The thunderous roar of the American Falls was silenced. Engineers from the U.S. Army Corps of Engineers completely dewatered the American Falls to study the underlying rock face and assess the long-term stability of the cliff. From June 12 to November 24, 1969, the world witnessed a rare and eerie sight — the American Falls dry and still, as experts worked to better understand and preserve th