It's kind of amazing how many climbing areas around the country have names from LOTR, e.g., in CT, Grond (cliff near Ragged) and Treebeard (route on the Small Cliff); at Joshua Tree, Tom Bombadil (but he's not a character in the movies, just the book); Yosemite, Gollum Arch Rock and Crack of Doom. Those are just what I remember offhand; just thumb through some guidebooks and you'll see many more, I'm sure.

Big cultural phenomenon!