Henry’s Fork 8-12-17

For the lower river “fish early, fish late ” applies and likely will until the end of summer, especially downstream of the Ashton Dam.  Early spinner falls (some PMDs and increasing tricos) and late day caddis activity are the best events for having action.  Presenting terrestrial insect patterns provides the best chance for action during day time (also effective early evenings), whether wading or presenting back toward the banks from a boat.   Trail those patterns with a small bead head nymph of choice.  Similar strategy applies to the river at Last Chance-Harriman section, but take into account the increasing presence of flying ants.  Flow out of Henry’s Lake is holding up (100 cfs) in the Flat Ranch section with trico spinner falls, speckled dun activity and terrestrial insect presence the bases for action.  However with warming water coming in from the lake above, look for fishing action to slow a bit as we move through August.