Ithaca Falls is a waterfall of Fall Creek in Ithaca, New York, near the Cornell University campus and within the city of Ithaca. It is the last step of a series of waterfalls from the hanging valley of Fall Creek to the glacial trough of Cayuga Lake. The falls are in an amphitheatre formed by freezing and thawing of the weak shale which makes up most of the gorge walls.