(406) 579-9553

Boulder River Fly Fishing

A Unique Small River Fly Fishing Experience

Boulder River Fly Fishing Trips

Fly fishing the Boulder River with our Montana fly fishing guides is a unique small river fly fishing experience for adventurous anglers. The Boulder River is one of Southwest Montana’s lesser-known fly fishing gems. Its origins are high in the Abasorka Beartooth Wilderness and it courses through some of the most scenic country in Montana on the way to its confluence with the Yellowstone River near the town of Big Timber, MT.

Our Boulder River fly fishing trips primarily focus on the lower stretch of the Boulder River where access is limited, but this picturesque stream can be floated by raft. Seasonal flows limit fishing on the Boulder River to only a handful of weeks per year and we encourage all anglers interested in a Boulder River fly fishing trip to book well in advance. The Boulder River caters well to both seasoned and beginner anglers.

Fly Fishing the Boulder River

From never-ending pocket water, to deep runs, to sweeping riffles, and great cutbanks, the Boulder River seems to be tailor made for fly fishing. The river is named for the many boulders along its length, which make for difficult wading and demanding rowing. Great hatches of stoneflies, mayflies, caddisflies, and terrestrials make for great fly fishing throughout the short float season.

The fishing pressure is low on the Boulder River and the wild trout that inhabit the river are almost always willing to rise to a well-presented dry fly. While nymphing and streamer fishing can also be effective, the main attraction on the Boulder River is without a doubt the outstanding dry fly fishing.

Due the variable nature of flows on the Boulder River all guided fly fishing trips are subject to safe river flows and conditions.

Book Your Next Montana Fly Fishing Trip

Plan Your Trip

Prime Season:

July 1-July 31

Notable Hatches:

Salmonflies and Goldenstones (July 1-31)

Nearby Towns:

Bozeman, MT; Livingston, MT; Gardiner, MT; Big Timber, MT; Big Sky, MT

Nearby Rivers:

Yellowstone River, Paradise Valley Spring Creeks, Yellowstone National Park, Stillwater River, Madison River, Gallatin River

Trip Offerings    

    What Our Clients Say


    My wife and I had a wonderful experience fishing with Montana Angling Company. Max was able to teach my wife to fly fish from scratch and she caught 5-10 really nice 18-20” fish her first time! He was very patient and knowledgeable. Thank you for such an amazing day! I would highly recommend from beginners to advanced fly fishermen and women.


    - Cooper M.

    What Our Clients Say


    Max is the perfect guide and teacher. My wife and I are newly retired and wanted to try fly fishing for the first time. We learned tons and caught lots of trout float and wade fishing. Can't wait to come back for our sophomore course. Thanks Max and Peter.

    - Cliff B.

    What Our Clients Say


    I've been guided by Max and his guides on the Yellowstone, Madison, and Missouri rivers and have had a blast every time. Their guides are knowledgeable, respectful, and patient--even when I tangle my line. The Montana Angling Co is a great choice whether it's your first time fly fishing or you're a seasoned pro--these guys know where the fish are and what they're hungry for.

    - Maggie O.

    What Our Clients Say


    Max’s professional demeanor, unmatched knowledge of fly fishing, and top rate gear combine to make any guided trip with him a special experience. Regardless of your ability or experience, you will not only catch fish, but you will have an excellent time as well.

    - Josh W.

    What Our Clients Say


    I have fished with guides across the United States and South America, and can say with confidence that Max's patience, passion, and knowledge of fishing are second to none. Whether you are an expert angler or fishing for the first time, Max is the guy you want to have in your boat.

    - Wesley R.

    What Our Clients Say


    We had an awesome experience with Montana Angling Co. Max worked with us to make sure we had the perfect day to go fishing. Our guide was Guy Flynn, and he was great. He was very patient with us and we enjoyed the conversation. He was putting us on fish all day long. Overall, we had a great experience, and I will definitely use Max's company again on our next trip to Montana.

    - Bryan L.

    Don't Wait, Book Your Fly Fishing Trip Today!