Glacial Geology of The Genesee River - Lower Genesee

Lower Genesee

In the lower part of the river, before entering Lake Ontario, the river appears to have been diverted once again from its ancient valley by the glacier. The original valley is thought to be that of Irondequoit Creek and Bay. The second image shows the most likely (buried) westward path originally followed by the river. With this blocked, the river cut a new channel, and created three waterfalls where it crossed limestone escarpments.