The Eagle River is certainly a guide favorite come autumn. Though from my experience we are still waiting for it to fall into that hot spot. There is still a week or two of hot weather to come, after that we should be seeing the Eagle really turn on. With a river that freezes over in the winter, those trout begin to stack calories like nobody's business in the late fall and early winter. With water being so low and clear it is important to size down on flies and tippet to gain success. Often times I do not fish droppers above a size #20 in fall and winter unless it is an attractor (worm, leech, egg). My go-to flies right now are smaller yellow stones, Rainbow Warriors, and last but certainly not least - the Trico (Black RS2 #20). Fish are stacking up in slow-moving water in the morning and swimming into fast riffles in the afternoon to feed.