Crayfish hatches are great because you usually have the stream to yourself.
These were the first smallmouth on the fly this year! All fish hit while using a very slow retrieve. I would let the fly drift and make tiny strips as the fly swung in the current. Missing are three pigs that came unglued. I really need to start using a strip set.
Flies:
Shenk's Sculpin in Black
Mixed Media Crayfish
Small Black Zonker/Slumpbuster