Photographs taken by Major Lee Moorhouse between approximately 1897 and 1919, depicting Cayuse, Umatilla, and other Native peoples and their settlements in the Columbia River Basin and Umatilla County; landscapes in Oregon and Montana; the Pendleton Round-Up in Pendleton, Oregon, and rodeos in other locations.

Small leather-bound album containing black and white portraits, taken by an unknown photographer, of unidentified members of the Umatilla people, particularly women and children.