In 1969, engineers stopped Niagara Falls for the first time in 12,000 years to prevent erosion revealing hidden coins, boulders, and a rare dry view before restoring its roar. Here's what we know. Subscribe to our newsletter at the #linkinbio to read the full story. | 1440

Niagara Falls without water, 1969 For six months in 1969 North Americas most iconic waterfall was purposely “de-watered”. This was done by the US army corps of engineers, because they wanted to conduct a geological survey of the falls’ rock face. They were concerned that it was becoming too destabilized from erosion. In order to do this the army had to built a 600ft (182 m) dam across the Niagara River. This dam consisted of 27,800 tons of rock. In November 1969 in front of 2,650 spectators, the