You can’t beat the Firehole River for good fishing in the Park right now. BWO, PMD, caddis, sally life cycle and soft hackled patterns are the way to go. The Ashton-Flagg Road remains closed beyond Calf Creek Hill, so only skiing will get you into Beula Lake and upper Fall River. The road also remains closed from the Wyoming (Flagg Ranch) side. Lewis Lake shoreline is producing some browns to those folks wading to presenting streamer patterns (be sure to have some featuring yellow) on sinking lines, and the same is happening for juvenile lake trout near Yellowstone Lake shorelines. We hear these fish, in particular, are great eating baked, battered then fried, or as the major component of a fish chowder!
And remember: we are a Yellowstone Park and Montana fishing license vendor.