Established per Order in Council 585, 30 April 1996, containing 4353 ha. more or less. Conversion of OIC to Statute designation per Bill 29: Park Amendment Act 1997, 23 July 1997, the whole still containing 4353 ha. more or less. Boundary redescribed per Bill 50-2004: Parks and Protected Areas Statutes Amendment Act, 17 May 2004; the whole now containing approximately 4393 hectares.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office