Last Chance Accesson Henry's Fork of the Snake River
River flow last 30 days
Strong Blue-Winged Olive (BWO) hatches
- 01Strong Blue-Winged Olive (BWO) hatches, especially on overcast afternoons.
- 02Consistent Mahogany Dun and October Caddis activity providing dry fly opportunities.
- 03Midges and Speckled Spinners remain a year-round staple.
- 04Focus on slower, meandering sections, Harriman Ranch, and Ashton to Funny Farm stretch.
- 05Pay close attention to rise forms; use delicate dry flies/emergers for risers and dry-dropper rigs in faster water.
What to tie on at Last Chance Access
Picked from recent reports for this stretch.
Trico Spinner
Crucial for matching the active Trico hatches and spinner falls expected in August mornings on the Henry's Fork.
Buy at AmazonBeetle (Crowe)
Terrestrial beetles are active along shaded banks in summer, providing opportunistic feeding for trout on the Henry's Fork.
Buy at AmazonYellow Sally
Yellow Sally stoneflies are abundant along freestone streams in summer, providing aggressive dry fly action on the Henry's Fork.
Buy at AmazonPMD Sparkle Dun
Pale Morning Duns (Flavs) are an expected early summer hatch on the Henry's Fork, making this emerger effective for fish feeding in the film.
Hopper
Grasshoppers are a primary terrestrial food source along grassy banks during summer months, especially in August on the Henry's Fork.
Zebra Midge
A staple winter tailwater pattern that perfectly imitates midge pupae. Red or black colors in sizes 20-22 are most effective on the Henry's Fork right now.
Buy at AmazonSow Bug
The Henry's Fork has massive populations of aquatic isopods. These are a constant, high-protein food source available to trout throughout the winter months.
Buy at AmazonRS2
An exceptional midge/baetis emerger pattern that is deadly when fished as a trailing nymph or just under the surface film during active midge hatches.
Tactical Peeping Caddis TH Jig
Caddis pupae are actively emerging in spring, and this weighted jig nymph is highly effective for getting down to fish feeding on subsurface caddis, particularly on undercut banks.
Idaho season by season
What changes on the water through the year, with the flies for each season.
Fly shops nearby
Local flies, current advice and guided trips.