Consists of a group of fourteen photographs and ephemera, mostly documenting Yakama (Yakima) fishermen at Celilo Falls on the Columbia River, which forms the border of Oregon and Washington. Based on contextual clues, the people in the photographs are likely citizens of the Yakama Nation, but they may also include people from the Umatilla and Confederated Tribes of Warm Springs communities, who also fished at the traditional trading area and sacred fishing grounds at Celilo Falls. Most of the photographs depict people fishing on wooden platforms, and several others show a family in ceremonial clothing. In 1957, the United States government flooded Celilo Falls to create the Dalles Dam despite opposition from Indigenous groups. One photograph of an unidentified group of people is stamped by Louise Phillips, a photographer with a studio at 5936 NE 42nd Ave. in Portland, Oregon, though it is unclear whether she is the photographer of the rest of the images. These photographs, which have been removed from an unlabeled album, were preceded by two ephemeral items. One is a newspaper clipping of a letter to the editor from Charles Castner, describing resistance by the Yakama people to the United States government's efforts to force Indigenous peoples to sell their fishing rights to Celilo Falls. The other is a slip of paper that reads, "PSA Field Trip Sept. 27, 1953," and has the name Al Chapuiau (possibly the assembler of the materials) written along the top.