Fly Fishing Heaven: Casting Lines on the Middle Fork of the Salmon River

There are few places left in the world where wild trout still thrive in pristine, free-flowing waters—and Idaho’s Middle Fork of the Salmon River is one of them.

This legendary river is a fly fishing heaven, winding through the heart of the Frank Church River of No Return Wilderness with more than 100 miles of crystal-clear, catch-and-release-only water. Whether you’re a seasoned angler or a curious beginner, fly fishing on the Middle Fork with Adventure Sun Valley is an experience that’s hard to beat.

The Middle Fork is home to native West Slope Cutthroat Trout, which are known for their eager takes and beautiful markings. The river also supports populations of rainbow and bull trout, and the best part? These fish are wild, not stocked—so every catch is the real deal.

The river’s natural ecosystem, cold mountain-fed flows, and strict management policies have kept this fishery in top condition. That means clear water, abundant insect life, and consistent dry fly action from late June through September.

We combine world-class fishing with world-class hospitality. While you’re casting from gravel bars and eddies, our expert guides are prepping meals, setting up camp, and handling logistics so you can focus on what matters—the tug on the line and the beauty of the wilderness.

Each day brings new water, new scenery, and endless fishing opportunities. And because we run our trips on the less-crowded upper launch schedule, you’ll often feel like you’ve got the whole river to yourself.

You’ll love this trip. Our guides are more than happy to give you tips, help you rig your rod, or show you the perfect cast—even if you’ve never touched a fly rod before. And for experienced anglers, the Middle Fork offers technical, rewarding fishing that will challenge your skills and leave you craving more.

Bring your own gear or use ours—either way, we’ve got you covered.

After a day of chasing trout, you’ll return to your riverside camp, where your tent is already set up, drinks are on ice, and dinner is sizzling. Kick back, share fish tales around the campfire, and rest up for another day of adventure.