For an angler judging the fishing, the release record is most of the story. The Lower basin has 62 recorded releases from 1915 to 2026, about 303,800 fish, the longest stocking history of the three. It opened with wild Gerrard Creek-strain
rainbow trout fry in 1915, then took a run of
Westslope cutthroat trout eyed eggs and fry between 1932 and 1938 (Mineral and Cranbrook hatchery stock) that was never repeated. Every release since has been rainbow trout, most recently 2,000 Blackwater R-strain yearlings on 2026-05-25.
Champion 2nd and Champion 3rd carry their own separate records, both rainbow trout only: the second basin has 48 releases since 1980 (about 135,500 fish), the third has 50 releases since 1980 (about 129,800 fish). All three basins were stocked again in 2026, so this is an active program, not a legacy one. The two programs read differently on the water, though: the Lower and second basins get small Blackwater R-strain yearlings (10-12 g at release) that grow through the season, while the third basin gets Fraser Valley-strain fish stocked at catchable size, roughly 230 g, about half a pound, right before the season opens, a straight put-and-take plant rather than a put-grow one.