Adopted in the 15th Report of the Geographic Board of Canada, 31 March 1917. "Chilcotin Lake (not Chezakut Lake)" confirmed in the 1930 BC Gazetteer. Re-approved 13 March 1947 on 93/SW. See Chilcotin River for origin information.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office