Established per Bill 17-2000: Protected Areas of British Columbia Act, 29 June 2000, containing 33,065 ha. more or less. Area expanded per Bill 15-2001: Protected Areas of British Columbia Amendment Act, 2001, 11 April 2001; the whole now containing 43,303 ha. more or less. Redescribed per Bill 84-2003: Parks and Protected Areas Statutes Amendment Act, 26 November 2003, the whole containing 43,245 ha. more or less.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office