Tying and Fishing the San Juan Worm Fly Pattern

The san juan worm fly pattern is likely responsible for more landed trout than almost any other fly in existence, even if some purists don't want to admit it. It's the ultimate "guilty pleasure" of the fly fishing world. We've all been there—spending hours at the vise crafting intricate mayfly nymphs or delicate midges, only to get skunked on the river. Then, out of desperation, you tie on a piece of red chenille, and suddenly every fish in the run wants a piece of it. It's simple, it's effective, and honestly, every angler should have a row of them in their box. ...

May 9, 2026 · 7 min · Mendoza Kambach