Firehole River is as good as it gets for this time of year. BWOs and white millers are the reasons. Really big fish are quite rare here, but the nearby Madison River hosts an increasing number of trophy size browns and ‘bows coming up from Hebgen. They are in the river from Madison Junction on down to Baker’s Hole, and they are best encountered when the weather is stormy or at dawn or at twilight. The Lewis River, anywhere above the canyon, also hosts migrating browns. Either place, Madison or Lewis, streamer patterns are the best for meeting up with them. In a few weeks there are more park waters we can recommend for migrating browns.