How do you fish the Yellowstone River?

Use a 9-foot 5- or 6-weight fly rod. Techniques include nymphing, dry fly, and streamer fishing. A drift boat is recommended to access the river through private lands and remote stretches.

What are the main hatches on the Yellowstone River?

Common hatches include Salmonflies, Golden Stones, Nocturnal Stoneflies, Yellow Sallies, Mayflies, and Caddis. During summer, terrestrials like hoppers, ants, and beetles are abundant.

What is the Yellowstone River known for?

The river is known for its scenic beauty, wild trout populations, and diverse fishing opportunities throughout the year.

Is the Yellowstone River stocked?

No. The Yellowstone River's fish populations are wild and sustained through natural reproduction, offering an authentic angling experience.

Where does the Yellowstone River begin and end?

The river originates at Yount Peak in Wyoming’s Absaroka Range, flows through Yellowstone National Park and Montana, and joins the Missouri River near Buford, North Dakota.

How long is the Yellowstone River?

The Yellowstone River is approximately 671 to 692 miles long, making it the longest undammed river in the contiguous United States.

What waterfalls are found on the Yellowstone River?

Notable waterfalls include the Upper Falls (109 ft), Lower Falls (308 ft), and Tower Falls (132 ft) within Yellowstone National Park.

Why is it called the Yellowstone River?

It was named for the yellow-colored canyon rock observed by early explorers. Native tribes originally referred to it as the 'Elk River.'

What wildlife depends on the Yellowstone River?

The river supports trout, bears, otters, eagles, and numerous aquatic species. Grizzly bears feed heavily on spawning cutthroat trout in springtime.

Can people fish or swim in the Yellowstone River within the park?

Fishing is allowed with a park-issued permit. Swimming, however, is discouraged because of extremely cold temperatures and strong currents.

The One & Only Yellowstone RIver

Bozeman Montana’s Iconic Freestone Fishery

The Yellowstone River is the longest undammed river in the lower 48 states, offering an authentic, free-flowing trout fishing experience.

Flowing from Yellowstone National Park through Paradise Valley and beyond, this legendary river is home to wild rainbow, brown, and native Yellowstone cutthroat trout. With stunning mountain backdrops, diverse fishing conditions, and world-class dry fly hatches, the Yellowstone River is a must-fish destination for any angler.

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Bozeman, Montana’s Iconic Freestone Fishery

Why Choose The Yellowstone River?

The Yellowstone River carves its way through some of the most scenic and storied landscapes in the American West — from its headwaters in Yellowstone National Park, through the heart of Paradise Valley, and deep into Montana’s open country.

As the longest free-flowing river in the lower 48, it delivers a rare, untamed experience. Anglers are drawn to its wild trout — rainbow, brown, and the native Yellowstone cutthroat — but they stay for the changing moods of the water, the prolific insect hatches, and the raw beauty of every bend.

Unveiling Montana’s Freestone Treasure

Unlike tailwaters with controlled flows, the Yellowstone River follows natural fluctuations, creating an ever-changing fishing environment. This freestone nature keeps anglers engaged, as water levels, insect hatches, and trout behavior shift throughout the season. From fast-moving runs and deep pools to gravel bars and undercut banks, the river offers a variety of fishing conditions that make every outing unique and rewarding.

Trout Density & Trophy Fish Potential

The Yellowstone River may not have the highest trout numbers in Montana, but what it lacks in density, it makes up for in size and aggression. The river supports a healthy population of wild rainbow and brown trout, with many reaching 14-18 inches, while larger fish over 20 inches are frequently caught. Native Yellowstone cutthroat trout can also be found, particularly in the upper stretches near Yellowstone National Park. The lower reaches of the river hold trophy-class brown trout, making it a prime location for anglers looking for big fish.

Prime Fishing Locations

The Paradise Valley stretch is one of the most sought-after sections for its healthy trout populations and scenic beauty. Below Livingston, the river transitions into larger water, where anglers often target predatory brown trout with streamers. Whether you’re floating or wading, the Yellowstone River provides endless opportunities for an unforgettable day on the water.

Yellowstone’s Hatches

The Yellowstone River is known for its prolific hatch activity, creating prime conditions for dry fly fishing. Spring kicks off with Blue Winged Olives, March Browns, and the famous Mother’s Day Caddis hatch. Summer is dominated by large stonefly hatches, including Salmonflies, Golden Stones, and Pale Morning Duns, while late summer and early fall bring exciting terrestrial action with grasshoppers, ants, and beetles. Fall extends the dry fly season with Mahogany Duns, Blue Winged Olives, and October Caddis, while streamer fishing becomes increasingly productive as brown trout prepare for their spawning season.

Hunting for Big Trout on the Yellowstone

The Yellowstone River is not just about numbers—it’s about the opportunity to land big trout. The river’s aggressive brown trout are known for explosive streamer takes in the fall, while summer produces thrilling dry fly action, with large trout feeding on stoneflies, hoppers, and other terrestrials. Every section of the river presents different opportunities, from acrobatic rainbows in Paradise Valley to deep-dwelling browns below Livingston. With the right presentation and a little patience, the Yellowstone can reward anglers with some of the most impressive trout in Montana.

A River That Belongs on Every Angler’s List

The Yellowstone River offers one of the most exciting and diverse fly fishing experiences in Montana. Its wild and scenic beauty, abundant trout, prolific hatches, and easy access make it a must-visit fishery for both experienced anglers and those new to the sport. Whether you’re floating through Paradise Valley, wading into the currents of Yellowstone National Park, or hunting trophy browns downstream of Livingston, the Yellowstone River is an adventure waiting to be explored.

Fly Fishing The Yellowstone River FAQs

TABLE OF CONTENTS

Yellowstone River Overview

Q: Why is the Yellowstone River a top fly fishing destination?

A: The Yellowstone River is one of the most famous freestone rivers in the country, offering wild trout fishing in a stunning natural setting with diverse water conditions and prolific hatches.

Q: What makes the Yellowstone River unique compared to other Montana rivers?

A: As the longest undammed river in the lower 48 states, the Yellowstone flows freely through Montana, providing a truly wild and dynamic fishery with ever-changing conditions.

Fishing Conditions & Species

Q: What species of fish can I expect to catch?

A: Anglers can expect to catch wild rainbow trout, brown trout, and native Yellowstone cutthroat trout, with fish spread throughout different sections of the river.

Q: How big do trout get in the Yellowstone River?

A: Trout in the Yellowstone River average between 14-18 inches, with larger fish over 20 inches common, particularly in the lower reaches where big brown trout thrive.

Fishing Seasons & Timing

Q: What is the best time of year to fly fish the Yellowstone River?

A: The Yellowstone River offers excellent fishing from April through October, with peak dry fly action occurring in June through September, and prime streamer fishing in the fall.

Q: What are the best hatches on the Yellowstone River?

A: The river features incredible hatches, including Salmonflies, Golden Stones, Caddis, PMDs, BWOs, and terrestrials such as hoppers, ants, and beetles, which provide exciting dry fly opportunities.

Fishing Techniques & Tips

Q: What are the best fly fishing techniques?

A: Dry fly fishing is a highlight on the Yellowstone, but nymphing and streamer fishing can also be highly productive depending on water conditions and time of year.

Q: What are the best flies for the Yellowstone River?

A: Some of the best flies for the Yellowstone River include Salmonflies, Golden Stones, Caddis, PMDs, BWOs, terrestrials like hoppers, and streamers like Sculpins and Zonkers for targeting big browns.

Guided Fly Fishing Trips

Q: What equipment is provided for guided trips?

A: Montana Trout Wranglers provides rods, reels, waders, boots, leaders, tippet, and flies. Anglers should bring a rain jacket, polarized sunglasses, a brimmed hat, clothes you can layer, and sunscreen. You are more than welcome to bring your own gear as well, but if you do not want to travel with your personal gear, we can provide you with all the essentials.

Q: Who will be my fly fishing guide?

A: Owner Dane Huzarski and his team of experienced and professional guides match anglers with the best guide for their skill level and fishing goals.

Q: Is lunch provided during guided trips?

A: Yes, full-day guided trips include a quality deli style lunch with, snack chips, fruit, dessert and non-alcoholic beverages, with accommodations for dietary restrictions. Deli lunches are subject to revisions and changes depending on supplier.

Q: What is the gratuity policy for guides?

A: While tips are not required, they are appreciated for your Missouri River fly fishing guide. A gratuity of 15%-20% of the trip price is common, and cash tips are preferred, paid directly to your guide.

Booking & Trip Planning

Q: How much advance notice is needed to book a trip?

A: Prime dates fill up months or even a year in advance. Early booking is essential, especially for trips requiring lodging. Please contact us for help with available dates for guides and lodging.

Q: What is the cancellation policy?

A: Deposits for canceled guide trips will be refunded in full with a 45 day or more notice. Cancellations within 45 days will forfeit all deposit monies. If we are able to re-book the guide, we will refund the deposit or apply it to a trip at a later date. If a trip is cancelled with less than 48 hours notice, the full price of the guide trip will be charged. Our guide trips go out in all safe weather and water conditions, therefore inclement weather, water levels or undesirable fishing conditions are NOT acceptable reasons to cancel or receive a refund. All cancellations must be given by written notice, either e-mail or by mail. The date a written cancellation notice is electronically received or postmarked will be considered the date of cancellation. Trips cancelled by the guide or mutual guide/client decision due to unsafe weather or water conditions, state or federal closures, or other uncontrollable circumstances will have the entire deposit refunded.

Lodging & Travel

Q: What are the lodging options near the Yellowstone River?

A: Lodging in Bozeman or Livingston can be limited and fills up quickly from mid-May to September. Early booking is highly recommended.

Q: Are there dining options near the Yellowstone River?

A: There are many different options in the Bozeman area from high end steakhouses to quick bar food. Reservations are suggested for the more in demand restaurants. Be sure to coordinate with your guide about times to book dining options.

Conservation & River Etiquette

Q: What are the catch-and-release best practices?

A: Handle fish with wet hands, minimize air exposure, and use barbless hooks to ensure safe release.

Booking your guide

Q: What are the next steps to book my trip?

A: Booking is easy! Simply contact us via our website, call us at 406-580-6050, or email This email address is being protected from spambots. You need JavaScript enabled to view it. to reserve your preferred dates.

Q: How much should I expect to tip my guide?

A: In Montana, the guide usually pays for shuttling the truck and trailer, all flies, lines, and equipment. Add classic Montana stlye lunches and the expenses can add up. So, usually a 15%-20% tip is appreciated.

Four Iconic Rivers

Based on your travel plans, we'll recommend the right Montana river to put you in the action.

The Missouri River

The Madison River

The Yellowstone River

The Gallatin River

Your Experience Is A Priority

We want to make your Bozeman fly fishing adventure easy, convenient and most importantly, lots of fun, filled with great memories.

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Yellowstone River Guide, Southwestern Montana, USA

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"Unforgettable Multi-Day Fly Fishing Adventure!"

Montana Trout Wranglers provided an incredible multi-day fishing experience, full of learning, great catches, and a fantastic time on the water.

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"Flawless Planning, Great Fishing, and Lasting Memories!"

The trip was well-organized, fun, and productive—we’re already looking forward to coming back!

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"Expert Guides, Amazing River, and Big Trout!"

The guides knew the missouri river well, helped us land strong rainbows, and made the entire experience unforgettable.

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Fly Fishing Seasons Of The Yellowstone River, Montana

Winter

The Yellowstone river is at its lowest point during the winter months. During this time period it is the most conducive to wading. Accessing the Yellowstone river from one of the many state owned access will give you plenty opportunities to fish. Winter fishing on the Yellowstone river consists of primarily nymphing with stoneflies and basic attractor nymphs. On the warmer afternoons you will find fish rising to midges in the Yellowstone river's back eddies and soft currents. You would be well advised as to check the weather report during the winter as Paradise valley is well known for extreme windy conditions throughout the winter.

Spring

Once the water temperatures start to warm up, the Yellowstone river's action heats up. Starting in early April the Baetis or blue winged olives emerge. The trout feast upon this first major hatch of the spring trying to regain loss energy supplies. The Yellowstone river also experiences many great caddis hatches, such as the "Mother's Day Caddis hatch" which occurs in the month of May. This blizzard hatch of caddis can make the Yellowstone's trout rise from bank to bank. Spring is a great time to fish the Yellowstone river as the trout are extremely hungry coming out of the cold Montana winter and the fishing continues to get better and better each day until run off starts.

Summer

The Yellowstone river is one of the last rivers to drop and clear up from spring runoff in our area. Generally by the end of June the river is safe enough to float and fish. Like the Madison the Yellowstone River has a great Salmonfly hatch. These gigantic stoneflies crawl up the banks, split their nymphal husks and emerge as huge, clumsy fliers. The trout crave these giant meals and they will move many feet to eat your dry fly. Once the salmonfly hatch is over on the Yellowstone river then the typical mayfly, stonefly and caddis hatches are predominant. Late in the summer the terrestrial fishing starts and is some of the best grasshopper fishing in the area.

Fall

Once fall sets in and the cottonwoods along the Yellowstone river start to lose their leaves it is time to break out the big guns. A majority of the trophy trout are caught during this time period. Fishing with a 7 or 8 weight rod and a sink tip line or floating line it is time to pound the banks and pull big streamers in front of the noses of trophy brown trout. The brown trout turn up their aggression in the fall as they begin to spawn. Covering as much water as possible and keeping your streamer in the "zone" is the key. Fishing 4-6 inch streamers is not uncommon. Fall on the Yellowstone river is your time to catch that trout of a lifetime.