Mount Doom is a fictional volcano in J. R. R. Tolkien's Middle-earth legendarium. It is located in the north-west 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"). The Sammath Naur ("Chambers of Fire"), made by Sauron in the Second Age, is a tunnel, leading to an interior platform with molten lava below it, located high up on the mountain's cone. It was here Sauron forged the One Ring during the Second Age.