If you’ve ever stood waist-deep in a rushing river, staring blankly at a fly box that looks more like a colorful abstract painting than a menu, you are not alone. Choosing the right fly can feel less like a science and more like trying to read a fish’s mind. But before you throw your hands up in frustration or start blindly tying on random bits of fluff, there’s a shockingly simple trick to crack the code.
The folks at Montana Angler have a great idea for those not sure what is biting:
“Try looking at some rocks to see the aquatic insects available to hungry trout.”
Instead of guessing, just flip over a few submerged stones near the riverbank. You just might get a preview of exactly what local trout are actively snacking on, whether it’s caddis larvae, stonefly nymphs, or mayflies. Match your fly to the size and color of those little river bugs, and you’ll turn a guessing game into a guaranteed dinner invitation.
