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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

Dorsal view of a Kogotus (Perlodidae) Stonefly Nymph from Mystery Creek #199 in Washington
This one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.
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.

About "Mystery Creeks": If you recognize one of these, you already understand why I'm keeping it a secret. I'm not as strict as some anglers about hiding where I fish, mostly because I don't expect to substantially affect fishing pressure on already well-known or simply unpopular waters. But there are some gems where I don't want to add a single unfamiliar bootprint to the mix, due to the fishing, their wild character, or keeping a friend's secret. They're all "Mystery Creek" here—even the lakes.

Landscape & scenery photos from Mystery Creek # 56

Chunky male brook trout and the best fish of the day
This remote small brookie stream rarely gets fished, and perhaps for good reason.  I couldn't find any trout.

From Mystery Creek # 56 in Wisconsin
Recent forest service work has stabilized the alder-lined banks of this small trout stream and opened it up to sunlight, which helps increase its productivity.

From Mystery Creek # 56 in Wisconsin
Interesting vegetation grows around this shallow, remote spring pond at the headwaters of an obscure trout stream.

From Mystery Creek # 56 in Wisconsin
Mystery Creek # 56 in Wisconsin
Mystery Creek # 56 in Wisconsin
Mystery Creek # 56 in Wisconsin
Mystery Creek # 56 in Wisconsin
Mystery Creek # 56 in Wisconsin
Mystery Creek # 56 in Wisconsin

On-stream insect photos from Mystery Creek # 56

I took this picture of a scud from above the water's surface in a very shallow, clear, tiny bit of water at the margin of a little spring pond.

From Mystery Creek # 56 in Wisconsin
Spent Hex spinners on a small stream the morning after the hatch.

From Mystery Creek # 56 in Wisconsin
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