When rivers are off color from a recent rain, trailing a baetis emerger behind a dry fly in slack water is a great way to bring some fish to the boat. Rain can murky up water at any time during the summer, but don’t be fooled into thinking just because we can’t see the fly, they can’t. This tutorial from Montana guide Matt Thomas is one of my favorite baetis patterns, and I find it fishes well in the off color stuff- maybe even better than it does when rivers are clear. This fly has all the good stuff: short material list, quick and durable tie, and fish-knockingly good end results. Tie some up and keep them tied on short leashes behind your dries, and you’ll light them up when the baetis are coming off.