Kato Indians. A Kuneste tribe or band formerly living in Cahto and Long valleys, Mendocino County, California. These were probably the people mentioned by McKee as occupying the second large valley of Eel River, numbering about 500 in 1851, and differing in language from the Pomo, a fact which has long been lost sight of. Powers divides them into Kai Pomo, Kastel Pomo, and Kato Pomo, and gives a Kulanapan vocabulary. They have recently been found to belong to the Athapascan stock and closely related to the Wailaki, although they resemble the Pomo in culture.