Waterfall Facts

The Niagara Falls moves upstream at an average rate of about 295ft a century!

Salmon can jump up to 12 feet high to clear waterfalls during their spawning migration, with most species averaging 4-6 feet.

A waterfall in Minnesota called The Devil's Kettle puzzled scientists for decades because half its water disappeared into a hole with no apparent outlet. The mystery was finally solved in 2017 when researchers confirmed the water simply flows through fractured rock and rejoins the river downstream.

They turned Niagara Falls off. In 1969, the U.S. Army Corps of Engineers dumped 28,000 tons of rock into the Niagara River, stopping the American Falls completely for five months. Tourists walked the dry riverbed and found millions of coins - and engineers discovered the fallen boulders below were holding the falls up.