Source of water - at niagara falls?

Nobody owns Niagara Falls. The US/Canada border essentially runs through the middle of the Horseshoe Falls (the bigger of the 3 falls). As far as any profit is concerned, it is made by those business owners who own businesses on either side. The Canadian side is more developed because the view of the entire falls system is better from the Canadian side however there are attractions on the US side as well. The flow of water over the falls comes from Lake Erie, in the south, flowing down the Niagara River and over the brink of the Niagara Escarpment to the lower level of the Niagara River and on into Lake Ontario before it heads out the St. Laurence River to the Atlantic Ocean.