Niagara Falls in winter, 19th-century illustration. These waterfalls are on the Niagara River, on the US-Canada border between the province of Ontario and the state of New York. Over 560,000 litres of water pass over the falls each second. Artwork published in 'Les arteres du globe' ('The Arteries of the Globe', 1888), a work on hydrology and geology by Paul Bory.