Henrys Fork of the Snake River, Riverside to Ashton Reservoir Dam

Active hatches are the story here on the lower Henrys Fork. Caddis and PMD hatches are going off sporadically throughout the day and consistently in the evening, with Green Drakes imminent. Flows were running at 1060 CFS on June 6. This is prime early-season dry-fly water if you match the hatch.