Collection includes photocopy correspondence and notes regarding the geology of the Columbia Gorge.

Oral history interview with Malcolm M. Crawford conducted by Pat Bleakney from November 28 to December 18, 1987. Crawford was a life-long resident of The Dalles, Oregon.

Oral history interview with Gertrude Glutsch Jensen conducted by Roberta Watts from December 7, 1977, to January 17, 1978. Jensen was active in the campaign to preserve the Columbia River Gorge in Oregon and Washington.

Remarks delivered by Gertrude Glutsch Jensen from her home in Portland, Oregon. In the speech, which was broadcast on KOIN radio, she discusses ongoing conflict over the preservation of the Columbia River Gorge.

Remarks delivered by Gertrude Glutsch Jensen on May 28, 1981. She speaks about regarding ongoing efforts to preserve the Columbia River Gorge.

Report with appendices, discussing the feasibility and desirability of preserving areas of the Columbia River Gorge for recreational purposes. The report was produced by the Pacific Northwest Regional Planning Commission's Columbia Gorge Committee, chaired by John Yeon (1910-1994). The committee would release another report about conservation of the Gorge, "Columbia River Gorge Conservation and Development," in 1937.

Oral history interview with Lewis L. McArthur conducted by Sieglinde Smith from January 19 to February 15, 2001. McArthur discusses his early life and his career in the steel industry in Oregon.

Papers include correspondence, newsletters, research and miscellaneous materials primarily regarding environmental conservation, especially of the Columbia River Gorge, 1971-1983.