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East / West Forks of the Boulder River The forks are excellent walk wade streams that have very good cutthroat, brown, and rainbow trout fishing, similar to that found in the lower sections of the Boulder River. Streamers, hopper imitations and standard dry flies all work well on the forks of Boulder River. The average fish size will be 10-14” with an occasional lunker in the 18-20” range. One of our favorite floats is to launch from private access on the West fork just above its confluence with the main Boulder River, float the upper stretch of the Boulder River down to 8 Mile bridge. Fishing pressure is quite light. Lighter tackle and tippets provide the best chance of success. An excellent Montana fly fishing experience! April and early May, before the run-off, March Brown's and Baetis are best. Hopper imitations work excellent later in the summer. Streamers are also effective, weighted down and fished around the downfall, in the holes and by the undercut banks. March Brown's and Baetis are the highlights of the Spring season and wade fishing is often the only option. After run-off we see hatches of PMDs, Golden Stones, Yellow sallies, and Caddis. As the summer heat kicks in major hatches subside and various attractors, grasshoppers, beetles and ants are the norm. Lots of large rocks in the river also provide lots of pocket water fishing with standard dry flies, such as the Parachute Adams and the Elk Hair Caddis. Big Timber and Sweet Grass Creeks Private access small waters and some favorite walk/wade trout streams, both begin high in the Crazy Mountains and flow through private ranch lands, to their respective confluences with the Yellowstone River just East of Big Timber. The Brown, Rainbow, and Yellowstone Cutthroat trout that inhabit these small waters are fun and aggressive. |