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Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin
Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

Lateral view of a Psychodidae True Fly Larva from Mystery Creek #308 in Washington
This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.
27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Landscape & scenery photos from Slough Creek

Slough Creek in Wyoming
Natural elk skull alongside Slough Creek

From Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Slough Creek in Wyoming
Bison along the Slough Creek Trail.

From Slough Creek in Wyoming
The trail up Slough Creek is one of the most well-trodden in the Yellowstone backcountry, but it still didn't feel crowded at all once we got beyond the first meadow.

From Slough Creek in Wyoming
Slough Creek in Wyoming
First pool on Slough Creek up the trail. We encountered a Baetidae (BWO) hatch here in a slow eddy, in just the right weather, and started working on rising fish right away. The fish were all small, and we caught a few, in the only dry-fly action of our four-day backpack trip.

From Slough Creek in Wyoming
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