A massive river that flows between Lake Ontario and Lake Erie for approximately 35 miles in length. It is home to the famous "Niagara Falls" both on the U.S. and Canadian sides. It is dotted with falls, whirlpools, and rapids along its course. There are also several islands along the run of the river: The two largest and most popular are the Navy Island and the Grand Island. Other popular ones include Goat Island, Luna Island, and Squaw Island. The river forms the border between Ontario, Canada and New York, USA. Many legends amiss around the river, as does its name origin. An Iroquois belief is it was named after a branch of the Neutral Confederacy called the "Niagagarega" in the late 17th century. Others state it was named after the Iroquois village "Ongniaahra" or "point of land cut in two". Today the river is dotted with, especially within the Falls area, hydroelectric power stations. The two most famous of which is the Sir Adam Beck Hydro-electric Power Station in Canada and the Robert Moses Niagara Power Plant in the U.S.A. It was America's first waterway to harness large scale hydro-electricity. Ships coming down the Niagara River use the Welland Canal of the Saint Lawrence Seaway to bypass the Falls. The Falls drop over 325 feet along its gorge fallway. It has two tributaries - the Welland River and Tonawanda Creek which were adapted into Canals for ship traffic such as the Erie Canal and the Welland Canal. The first European exploits of the area begin in the 17th century with French explorer Father Louis Hennepin published in the 1698 "A New Discovery of a Vast Country in America". Some of the first railways built in America were built along this river, including the inclined wooden tramway built by John Montresor in 1764 called "The Cradles" and "The Old Lewiston Incline". The River has seen its share of battles and wars, including ones between Fort Niagara (U.S.) and Ft. George (Canada) during the French and Indian War, American Revolution, Battle of Queenston Heights, and War of 1812. It was also very important during the American Civil War as a point where slaves crossed via the Underground Railway to Canada.