Firehole River, Duck and Cougar creeks are the best so far. The Firehole is best for dry fly fishing with PMDs, BWOs and caddis. There are a few PMDs on Duck Creek, but the best approach here is with nymphs, small leech patterns and the lowly San Juan worm. Same for Cougar Creek. Responses to the PMD emergence on the Madison River is improving. Fall River Basin streams will be high for a while as much run-off is yet to come down. Use a full sink line to put down scud and small leech patterns around weed beds on Shoshone Lake. Walk the Lewis Lake shorelines to pitch streamers on full sink lines, or use streamer tip lines to present streamers in the river above.