The T'Karath Sanctuary was an ancient underground spiritual site located in Vulcan's Forge, roughly 37 kellicams south of Mount Seleya on Vulcan. (TNG episode: "Gambit") Catacombs underneath the Sanctuary contained the physical remains of a number of early Vulcan leaders, including Surak's student and Kolinahr Master T'Klass. Also hidden within these catacombs was a chamber containing the Kir'Shara. (ENT episode: "Awakening")