Streams are dropping, but still high enough to slow fishing. Firehole is best bet with BWOs, PMDs and caddis life cycle patterns working. Try dry damselfly adult patterns. Duck and Cougar creeks are others to consider. Try damselfly nymph patterns. If you try streams with high waters, San Juan worms are a good bet. Best fishing now is on Lewis and Shoshone lakes. Use full sink lines and your favorite streamer patterns. If you can get to weed beds, scud patterns will work. Trout Lake opens on June 15th and holds some of the biggest cutts and ‘bows in Park waters. Damselfly nymph, scud and midge pupa patterns will be good choices.