Although beginning to warm up, the Firehole River offers the best fishing in the park right now. Soft hackled patterns to simulate PMD and BWO emergers work well as do life cycle patterns for both. White miller patterns are another ” must have” item in that fly box. Also the smallish stonefly event in the canyon will offer wind-pushed big and golden stone adults into the river above, and you can bet the resident trout know what they are. With stormy weather predicted through most of the upcoming week, the Firehole River will be a great place to fish, but will also be well attended with fly-fishers. Consider giving Nez Perce Creek a try with above patterns, but be “bear aware” if you do.
Other places to consider right now in the Park including wading Lewis Lake shoreline to pitch streamers at cruising brown and juvenile lake trout. Some snow remains on the trail to the Lewis River channel above the lake, but if you can break through it to the meadow, the brown trout responding to streamer patterns there will offer great fishing. Fishing in the Lewis River meadow below the lake offers a chance at very large brown trout, but they are the most cautious of browns anywhere. Streamer patterns might offer the best choice in the Gibbon River below the falls and in Duck Creek. Again be very “bear aware” at any of these locations. The Madison River is in a streamer mode for now as post-spawning rainbows head back down to Hebgen Lake.