§ Of Túrin Turambar The Silmarillion

Then Brandir came and looked down, and turned away in horror; and though he no longer desired life, he could not seek death in that roaring water. And thereafter no man looked again upon Cabed-en-Aras, nor would any beast or bird come there, nor any tree grow; and it was named Cabed Naeramarth, the Leap of Dreadful Doom.