This tool is not at all scientific or accurate. One problem is that this tool assumes most of the water flows through rivers and out to oceans, when in many cas

This tool is not at all scientific or accurate. One problem is that this tool assumes most of the water flows through rivers and out to oceans, when in many cases water flows underground in aquifers, emerging elsewhere. In the US south east these aquifers travel a long distance feeding many springs, which then lead to one of two rivers: the Suwannee River and the Saint Johns river. https://www.mysuwanneeriver.com/267/Springs https://www.mysuwanneeriver.com/267/Springs https://www.sjrwmd.com/waterways/springs/ https://www.sjrwmd.com/waterways/springs/