It's spelled Taughannock Falls for anyone looking for more information. It's the tallest single-drop waterfall east of the Rocky Mountains at 215 feet.

The waterfall is not frozen. It looks that way because the exposure time of the photograph is short, but not short enough to make the falling water look super sharp. Instead it looks slightly blurry and a lot like ice. This is what an average photo of the falls looks like in any weather. (Ignoring the ice around the waterfall.) I've photographed them myself.