Many Indian people believe spirits dwell in north central Montana's island mountains, including the Sweet Grass Hills and the Bear Paw and Little Rocky ranges. Their rugged peaks, clustered like tepees in a camp, offer access to the supernatural and provide a nesting place for eagles, the messengers of the spirits who live there. Generations of Blackfeet, Gros Ventre, Assiniboine, and Chippewa-Cree have used these isolated areas for fasting, prayer, and vision questing, where they find the precious gifts of water, plants, animals, and solitude from the Great Spirit. Stories of the Little Rocky Mountains' supernatural powers abound, including one about a terrible water-monster called Bax'aa that inhabited the spring on Eagle Child Mountain and frightened or even slew some who tried to fast there. At the western end of the Little Rockies, another site is remembered among northern Montana tribes for its spiritual significance as a battleground where the great Gros Ventre warrior Red Whip won victory over the Sioux against incredible odds, aided by a powerful war charm and a vision that foretold the battle.