At the height of the Codominium, a Khuzan clan adapted part of an existing natural cave system for use as a hunting lodge. Each autumn, the Khuzdul would travel there to spend a month hunting; the rest of the time the site sat empty. It has remained hidden for more than a millennium.
According to the Ilme, they once lived in a place called Ssanimar, where they were the thralls of the true dragons. This is a highly detailed atlas map of Ssanimar, wherever in Kelestia it may be.