Mount Doom, or Orodruin, is in Mordor during Sauron's reign. After Sauron's downfall it might be considered to come under the jurisdiction of Gondor.
Mount Doom is in Mordor.
When the battle at the Black Gate begins they play Mount Doom. From there they switch between scenes of Frodo in Mount Doom and the battle at the Gate. They play The Crack Of Doom, And then when the ring is destroyed they play The Eagles.
Mount Doom was actually modeled upon two active volcanoes in New Zealand : Mount Ngauruhoe and Mount Ruapehu .
Mount doom
In the fires of Mount Doom by Sauron
Orodruin .
The three eagles that rescued Frodo and Sam from the destruction of Mount Doom were Gwaihir, the Windlord, Landroval (Gwaihir's brother), and Meneldor.
To destroy the ring in the fires of Mount Doom .
It is currently in the cracks of Mount Doom.
Aligators evovled from the fiery lakes of mount Doom
Destroyed in the fires of mount Doom
cracks of doom in mount orodruin in mordor