Nit-pick: The "real" "Mordor on earth" is Mt. Tongariro on the north island of New Zealand. The 3-4 day trail around Mt. Tongariro and Mt. Ngauruhoe is one of New Zealand's spectacular "Great Walks." If you have the opportunity to visit New Zealand, you should take the time for at least one of these walks.
http://www.tongarirocrossing.org.nz/the-lord-of-the-rings.ht...