The Madison River drainage is very popular for fly-fishers these days for two reasons. First, run-up Hebgen Lake browns and rainbows are making for good streamer fishing in the Madison and lower Gibbon Rivers. BWO emergences on the Firehole River and Gibbon River are making for good action, and with a storm likely coming on, could be even better. Outside of the Madison River, Yellowstone River browns are beginning to move into the lower Gardner River. Browns are in the Lewis River Channel big time, but so are anglers. Its the most numerous run of browns in park waters. Strategy for best fishing here is to camp overnight at the outlet, and be on the river at first light, because after the hoards of anglers move in, the browns develop “lock jaw” from resulting human turmoil. The same applies to browns going to the Lewis Lake outlet: stay the night at the nearby campground and get to the water at first light to beat oncoming crowds. Do you prefer presenting dry flies? Terrestrial insects are still numerous along Fall River Basin streams, but likely NFL (not for long).