Action is picking up on all reservoirs in the southeast corner of Idaho. Midge pupa under an indicator presented at the taking depth is working well. So are damselfly nymph and standard sized (#4-#8) leach patterns. Shallower waters and around submerged vegetation are best because they tend to be warmer and produce more food forms. Of these reservoirs Springfield seems to offer slowest action. Mackay Reservoir is fishing well at inlet channels. Try leech patterns. With respect to still waters at higher elevations, it’s going to be interesting to see when these become ice free. Ice on Henry’s Lake remains healthy and needs warm weather stretches to change. Same for Island Park Reservoir.