With flow out of Mackay Dam at a bit over 100 cfs, and low snow pack in the Big Lost River Valley, the Big Lost River should be on your list of streams to try during the winter season. This season ends March 31st, so there is time to plan a trip when the days warm up. Folks going to the river around Mackay report that trout are taking golden stone nymph patterns, midge pupa and adult patterns. So consider patterns for these as well as small bead head nymphs. Few BWOs are showing, but as the days lengthen and warm their life cycle patterns will be more effective.