Where is Mt. Doom located

Black Land of Mordor
Mount Doom is a fictional volcano in J.R.R. Tolkien's Middle-earth legendarium. It is located in the northwest of the Black Land of Mordor and close to Barad-dûr. Alternative names, in Tolkien's invented language of Sindarin, include Orodruin ("fiery mountain") and Amon Amarth ("mountain of fate").
Tongariro National Park
Tongariro National Park stole some of the biggest scenes in Lord of the Rings, with Mount Ngauruhoe (digitally altered) standing in for Mount Doom. Filming at the summit was not permitted because the peak is sacred in Maori culture; however, some scenes were filmed on its lower slopes. Mount Ruapehu
Mount Ruapehu, located on the northern island of New Zealand is famous for its depiction as Mount Doom, and may soon live up to its name. The volcano was used by Peter Jackson to depict Mount Doom from J. R. R. Tolkien's famous Lord Of The Rings.
Etymology. Orodruin was the common Sindarin name for Mount Doom. It means "Fire Mountain", from orod ("mountain") and ruin ("burning, fiery red"). However, the literal Sindarin translation for Mount Doom is Amon Amarth, from amon ("hill, mountain") and amarth ("doom, fate").

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