Oral history interview with Frank Amato, conducted by Clark Hansen on November 16, 1998, as part of the Columbia River Dissenters Oral History Series. Amato discusses fishing in the Columbia River Basin, the effectiveness of fish hatcheries and other conservation efforts, and publishing fishing magazines and books through his imprint, Frank Amato Publications.

Collection consists of pages excised from the December 10, 1870, and May 20, 1876, issues of the periodical Appletons' Journal, both featuring articles and engravings related to salmon fishing on the Columbia River.

Topical collection of twenty black and white photographs, primarily newspaper production prints, depicting scenes of beavers in Oregon, including beavers swimming, eating, building dams, and being trapped.

Unprocessed collection of miscellaneous records of the Bonneville Power Administration, including progress reports of the fish-passage research program, correspondence, and statistical data on the capacity of the Bonneville fishways.

Black and white photographic postcard of a herd of caribou near Nome, Alaska.

Oral history interview with Ed Chaney, conducted by Clark Hansen in two sessions, on May 4 and May 5, 1998, as part of the Columbia River Dissenters Oral Histories Series. Chaney, founder of the Northwest Resource Information Center, discusses his opposition to the fish conservation policies of the organizations that manage the Columbia River Basin and the dams in the basin.

Oral history interview with Chuck T. Collins conducted by Michael O'Rourke on October 19, 1999, as part of the Northwest Power Planning Council Oral History Project. Collins was a member of the council, now known as the Northwest Power and Conservation Council, from 1981 to 1986.

Oral history interview with Cort Conley, conducted by Clark Hansen on May 10, 1998, as part of the Columbia River Dissenters Oral History Series. Conley discusses his experience as a boatman on the Salmon River and Snake River in Idaho, and talks about changes in the Hells Canyon area between 1972 and 1998.

Ralph Penniwell Cowgill (born 1880) served as an engineer for the Oregon State Game Commission, president of the Oregon Game Protective Association, and in the Oregon Legislature. Collection includes correspondence and reports, 1922-1935, regarding his work with those organizations, as well as the Oregon Reserve Corps and National Guard, with emphasis on fish husbandry and river pollution.

Oral history interview with Michele DeHart, conducted by Clark Hansen on December 11, 1998, as part of the Columbia River Dissenters Oral History Series. DeHart discusses her work as a fish biologist and as manager of the Fish Passage Center in Portland, Oregon, and talks about fish conservation measures in the Columbia River Basin.