The fishing on the Henry’s Fork on the lower section is starting to slow down and be an early morning and late evening game due to the hot water. The upper Henry’s Fork from Harriman State Park and up has been fishing well. The lower section has been most consistent with Caddis in the evening and a few mayflies in the mornings. Harriman has been fishing well with PMDs and Box Canyon has been fishing well with nymphs even though the river has been raised to 1300 cfs.
Flies I would use:
Dry Flies: Rusty Biot Spinner size 16 & 18, CDC PMD Thorax Dun 18, Elk Hair Caddis Tan 14,
Nymphs: Bennett’s Rubber Leg Brown size 10, Psycho Prince size 16, Pheasant Tail size 16, Bead-Headed Crystal Pheasant Tail size 16 & 18.