thedailywhat:

Well This Is Something You Don’t See Every Day of the Day: A Connecticut man accidentally stumbled onto a shoebox containing a set of never-before-seen photos snapped by his in-laws from the time the U.S. Army Corp of Engineers turned off the water on the American side of Niagara Falls.

From the Daily Mail:

In June 1969, U.S. engineers diverted the flow of the Niagara River away from the American side of the falls for several months. Their plan was to remove the large amount of loose rock from the base of the waterfall, an idea which they eventually abandoned due to expense in November of that year. […]

To achieve this the army had to build a 600ft dam across the Niagara River, which meant that 60,000 gallons of water that flowed ever second was diverted over the larger Horseshoe Falls which flow entirely on the Canadian side of the border.

The dam itself consisted of 27,800 tons of rock, and on June 12, 1969, after flowing continuously for over 12,000 years, the American Falls stopped.

Above: American Falls, then and now.

[fark.]