Yellowstone National Park is the world’s first national park and home to some of the best fly fishing in the world. It is a scenic wonderland awaiting discovery and a fly-fishing paradise. With crystal-clear waters and some of the most abundant and remarkable fish species in a serene environment, this river invites anglers to experience a world-class fishing adventure.

If you want to immerse yourself in Yellowstone's vibrant, natural world, fly fishing is an unforgettable way to engage with the surrounding landscapes. Here’s everything you need to know about fly fishing in Yellowstone, from top spots to tips to make your experience seamless and exceptionally rewarding.

Top Spots for Fly Fishing in Yellowstone

Finding the perfect spot for fly fishing doesn’t have to be a struggle. Yellowstone offers a wide array of water bodies, all charming. Here’s a look at our favorite, possibly most iconic locations for fly fishing in Yellowstone:

1. Yellowstone River

The Yellowstone River is legendary when it comes to fly fishing destinations. Here’s a river that spans 692 miles, the longest free-flowing river in the lower 48 and home to a diverse range of fish species. Fly fishing the Yellowstone River in YNP provides a fantastic western angling experience.

The river sections above the Grand Canyon of the Yellowstone waterfall is where native Yellowstone cutthroat trout thrive free of competition from introduced species such as rainbow or brown trout. The river is difficult to access, downstream of Tower Falls but holds good numbers of wild trout from there to the park boundary near Gardiner. Early summer hiking trips through the Black Canyon are a great way to balance sightseeing and fly fishing.

2. Firehole River

Winding through geyser basins, the Firehole River offers one of the more unique experiences in Yellowstone country: fly fishing. Thanks to geothermal influences, the waters in Firehole River are warm throughout the season, making early and late-season fishing ideal for angling enthusiasts. While Firehole River may not be known for its large fish, it does offer unique conditions that attract smaller brown and rainbow trout. Firehole River’s unusual landscape and hot spring features make it a top spot for fly fishing and Yellowstone National Park enthusiasts.

3. Lamar River

The Lamar River is an excellent choice for a more secluded and peaceful fishing experience. Known for its challenging waters and rugged landscape, Lamar River is home to a healthy population of cutthroat trout. Fly fishing along the Lamar is ideal for anglers seeking a more adventurous experience, as it requires a bit of a hike to access some prime spots. However, the reward is unparalleled, with incredible scenery and often less crowding than other Yellowstone waters.

4. Slough Creek

For the angler who prefers a more serene experience and doesn’t mind a bit of a hike, Slough Creek will offer you a peaceful, quiet fishing experience with the reward of a chance at some hefty cutthroat trout. Slough Creek comes with slow, meandering currents and serene, rolling meadows that are ideal for escaping crowds.

Do I Need a Fishing License?

Yes, you’ll need a fishing permit to fish in Yellowstone. Permits can be purchased at the park’s visitor centers and select businesses outside the park.

This is good news, though, as you won’t need a state-issued license; Yellowstone National Park has its own system. A three-day pass is roughly $40, $55 for one week or $75 for the entire season.

Rangers are serious about protecting Yellowstone’s fish populations, so ensure to follow the regulations, which include limits on lure types, hooks and the practice of catch and release.

Can you Keep the Fish you Catch?

Certain non-native fish species, like brown and rainbow trout, can be kept in designated areas after catching. Yellowstone’s guidelines are focused on conservation, so if you should catch a native fish, such as a cutthroat, anglers are highly encouraged to release them to help sustain the park’s biodiversity.

As always, follow daily and size limits and stay updated on regulations, as they can vary by season and location.

If you’re new to fly fishing in Yellowstone or want to get the most out of your experience, booking a local Yellowstone fly fishing guide is your best bet.

• Guided fly fishing in Yellowstone by local guides can lead you to prime locations you may miss.

• Local tour guides know the best times and are skilled at judging river conditions, meaning they can make your experience as smooth as possible.

• Local fly-fishing guides can often handle the permits, know the water more intimately than others, and, in some cases, can provide equipment.

Six Tips for Memorable Yellowstone River Fly Fishing Adventures

1. Gear

Bring the right gear because conditions in Yellowstone can change very quickly. It’s best to bring or wear layers, especially during early and late-season trips. In addition to making sure you have your fly rod, pack, waterproof waders, a rain jacket and sunscreen—you may want a good pair of polarized sunglasses to spot and see the fish. A hat to keep the sun off your face and insect repellent are also must-haves, as the park’s lush landscape is a magnet for flies and mosquitos.

2. Respect

Respect Yellowstone’s delicate ecosystems and wildlife. During your fly-fishing trip, you may encounter large animals like elk, bison, and bears. Always maintain a safe distance from any animal and never leave food out. Follow the “Leave No Trace" principles to help preserve the park for future generations.

3. Observe Regulations and Catch-and-Release Practices

Many Yellowstone fly fishing guides will emphasize conservation, so be mindful when handling fish. Use barbless hooks, keep them in the water as much as possible, and hold them gently to minimize stress before releasing them.

4. Keep Track of Time

Fish activity in the area can depend significantly on the time of day. For optimal success, try to start in the early morning or late afternoon. Fish are more active during these times, and water temperatures are cooler.

If you find yourself fishing during the midday hours, seek out shaded areas or deeper pools, as fish often seek shade to escape the sun.

5. Keep up with Regulations

Yellowstone’s fishing regulations are specifically designed to protect the park’s natural resources. Before you gear up and set out, make sure you’ve had the chance to review the latest rules, guidelines, and regulations, as they may have seasonal or specific species updates.

6. Embrace Patience and Persistence

Fly fishing in Yellowstone National Park can require patience, especially if you’re not seeing immediate results.

Take your time to observe the water, the flow, and the behavior of the fish. Practice different casting techniques and experiment with various flies to see what attracts fish that day.

Conditions can vary, so staying persistent, calm, and adaptable can lead to the most rewarding catches yet. Remember: the experience is as much about the journey and the peacefulness of being in nature as it is about the fish you catch!

Answer the Call of the Wild: Fly Fishing Yellowstone

Beginners or experienced anglers alike can tell you that it’s so much more than just catching fish. It's about the moment, the connection to nature in one of North America's most unique and iconic landscapes.

Each river, each fish, and each day is a chance at a new, mind-blowing experience. Whether you’re casting into Yellowstone’s deep river pools or seeking the meandering flow of Slough Creek, there’s a spot for you here!