The Lore and the Lure of the Yosemite: Chapter VIII. His Customs, Religious Beliefs, and Ceremonies: Division of Territory
They had well defined limits of territory, or boundaries, which had been agreed upon in council by the chiefs and headmen of the different tribes, and beyond which no Indian dared go except as a visitor or trader. These boundaries, however, did not extend into the high Sierra, which was held to be common hunting ground open to all the tribes.