Henry’s Fork, August 2nd, 2023
Flow out of Island Park Dam has been reduced to the usual amount for this time of the season. Up and down the river AM spinner falls and terrestrial insects are abundant. Hopper and ant patterns and hopper-dropper rigs work anywhere during PMs. Long, drag free floats are are required with any of these. The above photo should be enough to tell you that in many locations, terrestrial insect populations are not only abundant but the major food form for trout this time of year. If you are experienced in long, drag free floats, consider using a slightly stronger tippet in order to play that trout quickly giving it a better chance to survive the warmer summertime waters..
One other thought; particularly in the Big Springs- Macks Inn, Box Canyon, Harriman State Park and Warm River to Ashton sections, recreational boaters abound. This means early AM spinner fall periods and late afternoon terrestrial insect activities are best conditions for minimizing interruptions.