The builders of this amazing gate was Gimli himself and about 20 other dwarves that accompanied him from the Glittering Caves. The first stage of creating this gate was mining all of the materials which included Mithril, silver, emeralds, and sapphires.
History and CompletionEdit
After the War of the Ring and the Main Gate of Minas Tirith had been destroyed by Grond, the massive battering ram, Gimli son of Gloin took a small group of his kin into the caves below Helm's Deep in the White Mountains (Ered Nimrais). Here, Gimli became the Lord of the Glittering Caves. He and his subjects found vast amounts of Jewels and minerals, which included the most valuable material in Middle-earth; Mithril.