Best Fall Nymph Patterns for Colorado: Tiny Flies, Big Results

Welcome to Small Fly Season

By October, Colorado trout have seen everything.
They’ve been peppered with hoppers, buzzed by streamers, and laughed at your size-12 attractors since June. Now they’re spooky, selective, and laser-focused on small, natural nymphs.

Fall is when fly boxes shrink and drifts get cleaner. It’s when “just one more good cast” turns into “okay, one more hour.”

So if you’re ready to trade bravado for precision, here are the best fall nymph patterns for Colorado — plus the rigs and tactics that actually get eaten when the leaves are gone and the water runs thin.