For an angler judging whether the lake is worth a stop, the release record is the fishing report. Provincial hatchery records run from 1958 to 2026 and log 44 release events, all of them
rainbow trout, totalling roughly 61,000 fish. The largest historical volume came from the Premier strain, about 29,000 fish stocked between 1971 and 2001, a program that ended more than two decades ago. The Beaver strain opened the record in 1958 and ran through 1993; Blackwater-strain fish went in periodically between 2002 and 2015.
The Pennask strain has both the longest run and the current program: stocked on and off since 1968, and every spring since at least 2021 without a gap, most recently 750 yearlings released in April 2026. That makes Pennask the lake's active, renewing cohort. Any rainbow you catch that trace back to the Premier, Beaver or Blackwater plantings would be legacy or self-sustaining fish rather than fresh stock, if any remain at all.