Tribe of the Three Valleys
From Tardis Wiki, the free Doctor Who reference
The Tribe of the Three Valleys was the name of the tribe of Laylorans that the Tenth Doctor and Rose came across on Laylora. The settlement was located on a plain, by the base of some hills, near the edge of the forest. The settlement consisted of tents made of animal skin and its inhabitants led a nomadic life. (PROSE: The Price of Paradise)
Some known members were: