For an angler judging whether the drive is worth it, the release record is the honest fishing report here. The Freshwater Fisheries Society of BC and its FIDQ predecessor recorded 27 releases of
rainbow trout between 1983 and 2009, totalling 107,500 fry, mostly Pennask strain out of the Pennask, Premier and Beaver hatcheries. The last plant went in on 2009-09-30: 4,000 Pennask-strain fry. Nothing has been stocked since.
That multi-decade gap changes how the lake should be read. This was never a wild fishery, so any
rainbow trout present today are either long-lived holdovers from the last plants or the product of natural recruitment in the lake, not a fresh season's stock. Confirm current status locally before planning a trip around it.