I have to agree the age of the trees makes this untenable anymore. You need trees 200 years old or more with these sharp bends. There are not that many trees that old around and I doubt trees that old with sharp bends would even be able to stand.

On the Wiki article it talks about someone erecting a plaque in 1911 to a tree. A logger posted a letter to the editor stating he remembers that tree getting the bend in a storm. That tree was commemorated but I can't find anything contemporary about. My assumption is it is long since gone. Trees with those sharp bends just are not stable for hundreds of years.