The Tenino (Melilema, Warms Springs Sahaptin), including the John Day (Tukspuch), Tyigh (Tygh, Attayes, Iyich), and Waiam (Wayam, Wayampam, Deschutes Indians), lived in north-central Oregon and south-central Washington along the Columbia River from the Deschutes River in the west to the Umatilla River in the east. They moved to the Yakima Indian Reservation in Washington and the Warm Springs Indian Reservation in Oregon. They spoke a Sahaptin language of the Penutian phylum.
Murdock, George Peter (1958). "Social Organization of the Tenino." In Miscellanea Paul Rivet Octogenario Dicata. Vol. 1, 299-315. México, D.F.: Editorial Cultura.