"I think the Shire parts of Middle-Earth could have been easily shot in PA."
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And if you've been along Route 6 in northern Pa. near Wellsboro is "The Grand Canyon of Pennsylvania", (Pine Creek Gorge).
Of course, it's thickly forested, but from the west side looking to
the headquarters buildings and lookout veranda it rather
reminds you of Rivendell, especially since it's a little tricky
getting to the park headquarters.
(A few pictures)
http://postcards.route-6.com/tioga.html
http://www.visittiogapa.com/grandcanyon.html