For an angler judging whether the fishing is worth the drive, the stocking record is the fishing report. Conway Lake is a put-and-take angling fishery, stocked with catchable game fish: 2 recorded releases totalling 2,000 fish (Rainbow Trout), last stocked 1998-09-30.
Stocking appears to have wound down after 1998. Confirm whether it is still topped up or now fishes as a residual, wild population. The chart below shows the full release history.