The Tribe of Rushing Water is similar to the clans of the warrior cats that live in the forest, but these cats live in the mountains, and there is only one tribe and they have no rivals. Their camp is in a large cave behind a waterfall, and they have similar ancestors as the warrior cats, but instead of StarClan, they are the Tribe of Endless Hunting.
This tribe was first introduced into the series in the New Prophecy series when the clans were journeying to their new home. The tribe is led by a cat called Stoneteller, and he works as both leader and medicine cat of the tribe, interpreting signs from their ancestors as well as helping injured cats. Tribe cats are separated into two main groups, Cave Guard or Hunter. This is decided at birth, and if the kit looks large and strong, it will be a guard. But if it looks thin and fast, it will be a Hunter. A Cave Guard protects the cave from any large birds or mountain cats while a Hunter catches prey for the tribe. The Clan and Tribe cats have helped each other many times, and they have been in about five of the Warrior Cats books.