Atlin Park established per Bill 174: Parks Act, 18 May 1973. Name changed to Atlin/A Téix'gi Aan Tlein Park per Bill 49-2012: Protected Areas of British Columbia Amendment Act, 31 May 2012, the whole now containing approximately 229,894 hetares.
Source: BC place name cards, files, correspondence and/or research by BC Chief Geographer/Geographical Names Office.