Henry's Fork

Same story for the Last Chance-Harriman part of the upper river: AM trico, daytime terrestrial insect activity. Crowds have thinned considerably. Tiny BWOs are out on the lower river along with some mahogany duns. Terrestrial insects everywhere will remain active and thus available to fish until a killing frost.
Fly Patterns to use:
Harrop’s CDC Water Wasp-Honey
Antonio’s Adult BWO