Isachsen is a remote Arctic research-weather station named after the Norwegian explorer of the Arctic, Gunnar Isachsen. It is located on the western shore of Ellef Ringnes Island in the Sverdrup Islands, in the territory of Nunavut in Canada. Isachsen Station was established to participate in a joint Canadian-American weather observation program. Isachsen Station operated from April 3, 1948 through September 19, 1978. Regular weather observations began on May 3, 1948. In October 1949, a Douglas C-47 Skytrain (tail number 316062) crash landed near the station. No one was injured, but the wreckage has been preserved by the cold weather and dry conditions.