World Class Fly Fishing Event.
Getting Prepared for September, the 40th Annual Jackson Hole One Fly
Every September in Jackson Hole, Wyoming 40 teams put their skills to the test- fishing two days, each with a single fly, with team and individual scores determined by the quantity and length of fish caught.
The Jackson Hole One Fly Event uses monies raised to fund conservation, habitat preservation and rehabilitation projects, along with stewardship education for the benefit of trout populations primarily in the Snake River Basin and the headwaters in Yellowstone Park.
Years
Fly fishing’s longest running event
Projects
Conservation and the environment are our priority
“A great river, some scrappy trout and folks who enjoy each other … that’s what fishing has always meant to me“
Participant
Letter from the Chairman of the Board
Dear Friends of the Jackson Hole One Fly:
As I sit down to write the 2025 Jackson Hole One Fly Chairman’s letter, I feel the usual excitement in anticipation of the upcoming One Fly which remains one of my favorite events, a touchstone on my annual calendar. While the excited feeling is typical, the reasons for it have evolved over the years from simply having the chance to throw the fly at fish in a beautiful setting to now including many of the elements of a Jackson Hole One Fly event. Namely, the chance to reconnect with old friends and new, get caught up on recent events in the fishing world in general and in the Snake River watershed in particular, the opportunity to continue to learn about techniques to improve my fishing skills and, finally, the ability to create great memories on and off the water.
- – Greg Case, Chairman
Our Core Values.
Sportsmanship
Creating an exceptional three-day experience that unites passionate anglers in support of conservation, celebrating both angling skill and our shared commitment to protecting wild trout habitat.
Community
Bringing together anglers, guides, and conservationists from across the country to share knowledge, build friendships, and work toward common goals for our watersheds.
Culture
Preserving the traditions and ethics of fly fishing while fostering respect for wild places, fair play, and the timeless connection between angler and river.
Conservation
Every cast supports habitat restoration. Our shared passion for fishing drives our commitment to protecting the waters that sustain wild trout for future generations.
Featured Conservation Projects
Since 1993, the Jackson Hole One Fly Foundation has raised and funded over $3.4 million while joining matching funds from others to fund over $24.5 million — yielding total conservation funding of over $27.9 million for selected trout conservation projects.
Investigating the Effect of Novel Lake Trout Suppression Techniques on the Food Web in Yellowstone Lake (WY)
Yellowstone cutthroat trout in Yellowstone Lake have been threatened for 30 years by a highly abundant invasive lak…
Canyon Creek Stream Restoration and Monitoring (MT)
Canyon Creek is a tributary of the Shields River outside of Bozeman, Montana, at the northern-most range of Yellows…
Improving the Trail Creek Fish Ladder for YCT Migration (WY and ID)
FTR is working with the Trail Creek Sprinkler Company (TCSC) irrigators to improve fish passage and water delivery …
North Fork Tincup Creek Idaho Based Restoration Phase 2 (ID)
The proposed action is to improve 1.6 miles of North Fork Tincup Creek, beginning one valley mile above the North F…
Iconic Rise Film (WY)
At a time when climate change, water temperatures, water management, in-stream flows, invasive species and fishing …
2025 One Fly Event
Results & Scores
Complete team standings, individual achievements, and scoring highlights from three memorable days of conservation-focused angling.
Winning Fly
The proven pattern and strategy that defined success during the 2024 Jackson Hole One Fly event.
Galleries
Stunning photography capturing both the natural beauty of our waters and the conservation passion of our participants.
The Guides
The premier professionals who guided our 2024 participants while championing year-round conservation efforts.
We couldn’t do it alone.
Partners & Sponsors
The success of the Jackson Hole One Fly revolves around the many partners who share in its mission and generously contribute their time and resources each and every year. These partners come in many forms, but every one is absolutely essential to the cause. Whether auction donors, committed guides, or company sponsors, these partners believe in conservation and are the backbone of our annual event. We want to not only express our gratitude but whole-heartedly recommend those listed here as companies and individuals devoted to the protection of the resources we hold dear.
Latest News
ANGLERS CORNER: Charles Mcilvaine
GUIDE’S CORNER: It Affects Us All
2025 Jackson Hole One Fly: A Letter from the Chairman
ANGLER’S CORNER: “Hooked on the One Fly: A Love Letter to Fishing and Teamwork”- by Bud Chatham
Support our conservation efforts to protect and restore trout habitats
Please donate to the conservation grants program to support trout habitat education, conservation, preservation & restoration projects.