The day Niagara Falls ran dry: Newly-discovered photos show the moment the iconic waterfall came to a standstill

(By Graham Smith, UK Mail Online) - It's taken 41 years, but a previously unseen set of photos of the mighty Niagara Falls reduced to nothing more than a barren cliff-top have finally surfaced.

The stark images reveal North America's iconic - and most powerful - waterfall to be almost as dry as a desert.

In June 1969, U.S. engineers diverted the flow of the Niagara River away from the American side of the falls for several months.