Long Lake adopted 11 January 1922, applying to both lakes as labelled on BC map 4J, 1921. "Long Lake (not Woods)" identified in the 18th Report of the Geographic Board of Canada, 31 March 1924. "Long Lake (not Kalamalka)" identified in the 1930 BC Gazetteer. Name changed to Kalamalka Lake and Wood Lake (referring to the north and south lake, respectively) 7 February 1951 on 82L/SW to conform to established & preferred local usage (June & July 1950 letters of advice from Vernon and Coldstream municipalities, historian Frank Buckland, Okanagan Historical Society, Board of Trade, etc, file V.1.50).

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

14 miles long, ½ to 1½ miles wide. Indian name, Chelootsoos, meaning "long lake cut in the middle." J.W. Trutch's 1871 map of British Columbia shows two separate lakes: "Long L." to the north "Primeewash L." to the south, with "Railway" for the strip of land between them - so called because it resembled a railway embankment.

Source: Laing, Frederick W; Geographical Naming Record, September 1938; unpublished manuscript held in the Provincial Archives