The Adams pass through the 5 @,@ 733 hectare Upper Adams River Provincial Park and the 1 @,@ 076 hectare Roderick Haig @-@ Brown Provincial Park , which provide trails and platforms for salmon viewing . Human visitors to Roderick Haig @-@ Brown Provincial Park was estimated at 160 @,@ 000 in 2010 . Haig @-@ Brown was a Canadian conservationist , writer and a member of the International Pacific Salmon Fisheries Commission .