The universal dry fly in its parachute configuration. The white post is visible to anglers while the low-riding body sits in the film where trout expect insects to be.

Al Troth's iconic caddis imitation. The buoyant elk hair wing and palmered hackle ride high on turbulent water, imitating adult caddisflies across every western river.

George Griffith's cluster midge pattern that imitates a ball of midges in the surface film. When trout sip invisible bugs, this is the answer.

Randall Kaufmann's versatile attractor dry fly that suggests stoneflies, caddis, and hoppers. The buoyant body and oversized hackle float it through heavy water where selective fish become aggressive.

A large caddis imitation (Dicosmoecus) for the fall emergence. Size #8-10 in burnt orange — these big bugs bring up fish that have been hiding all summer.

The universal dry fly. Grizzly hackle, white post, dubbed body. If you cannot identify the hatch, tie on an Adams.