Collection consists of photographs and textual records. The photographs were removed from the Yukon River Basin Study project report, no. 4: "An Assessment of the Fisheries Resource in 18 Lakes Within the Yukon Territory, Canada", by Aileen Horler, R.A.C. Johnston, G.M.W. Cronkite in 1983. The textual records were collected and prepared by the Energy Work Group of the Yukon River Basin Committee. There are 85 files of photocopied excerpts from energy-related reports. Files 86-88 contain a card file index to the reports, photocopied cross-references to the reports, and a chronology of upper Yukon River studies, 1946-1968.