niagara-falls-info
NIAGARA FALLSAnatomy of a Natural Wonder A River's Relentless RushThe combined power of the Great Lakes culminates in the Niagara River, which carries an immense volume of water over the falls every second. 2,407
Cubic Meters Per Second (m³/s) (Mean Annual Flow Rate) A Triptych of PowerNiagara Falls is not one, but three distinct waterfalls. The mighty Horseshoe Falls carries the vast majority of the water, dwarfing its American counterparts. Flow DistributionThe Horseshoe Falls accounts for approximately 90% of the Niagara River's total flow, concentrating immense erosive power on its crescent-shaped crest. By the Numbers: Height & WidthWhile the American Falls has a higher vertical drop to its base of rocks (talus), the Horseshoe Falls is significantly taller, wider, and more powerful. A 12,000-Year RetreatBorn from melting glaciers, the Falls have been relentlessly carving their way upstream for millennia, a journey recorded in the 11km (7 mile) long Niagara Gorge. 12,000 Years Ago: The BirthThe Falls are formed at the Niagara Escarpment near modern-day Lewiston, NY, as glacial meltwater begins to pour over the cliff. Pre-1900s: Natural ErosionThe Falls retreat at a rapid pace, estimated at 3 to 5 feet per year, constantly reshaping the landscape. 20th Century: Human InterventionLarge-scale water diversion for hydroelectric power dramatically slows the erosion rate to about 1 foot per year. The Future: 50,000 Years?Without human intervention, geologists estimate the Falls would erode all the way to Lake Erie in 50,000 years, draining it completely. Dancing on the BrinkThe Falls' fame has long attracted daredevils seeking to conquer it for fame and fortune. Their stories are a bizarre and often tragic chronicle of human audacity.
Taming the GiantThe same force that inspires awe also represents an immense source of energy. The 1950 Niagara River Water Diversion Treaty allows for a delicate balance between scenic beauty and power generation. Water Diversion at NightA Tale of Two FlowsTo ensure a spectacular view for tourists, the flow is kept high during the day. At night and in the off-season, the flow is drastically reduced. Daytime Tourist Hours: 2,800 m³/s (Minimum flow over falls) Night & Off-Season: 1,400 m³/s (Minimum flow over falls) Niagara on the World StageWhile not the tallest or widest, Niagara's power lies in its immense volume. Here's how it compares to other world-famous waterfalls. |