Stimulator

In my opinion, the Stimulator is one of the best flies for using as an indicator. It floats high, is super buoyant, and mimics a large range of bug species. I could be wrong, but I believe it was originally created to be a stonefly imitator, however it can easily mimic hoppers, and even large caddis if tied to the correct sizes.

Being very buoyant means that you can drop a bead head nymph behind it, or another small dry fly. This thing will hold up a large variety of other flies. Also, being such a large size, fish tend to hammer this fly hard! Some of my best strikes, where the fish literally came out of the water, have been with a stimulator. Using different colors of hackle, and dubbing can give you different effects. For my local streams in Colorado, this orange/brown body, with tan/grizzly head works great! But your local streams and rivers might vary.

The hook commonly used for this fly is one with long shank, but with a curve to it. The hook I used is from Firehole sticks, but common hooks you can find at most fly shops will be Daiichi 1270 or TMC200. Of course you can use whatever you want, get creative! However a different shaped hook will give it a different look, and won't have that traditional Stimulator body curve to it.