Flow
1,630 cfs ↑
Trend
Rising
Observed
4h ago
Hatch Status
Mahogany Duns coming off in the evenings.
Conditions
The lower Henrys Fork is shaping up as a prime fall fishery. As of September 4, flows are running 1,630 CFS near Ashton—slightly elevated from earlier in the week—with the nymph bite improving in deeper holes. Mahogany Duns are showing in the evenings, and clearer skies favor continued activity. Consider focusing deeper water as flows are currently rising.
Gauges
Techniques
- Pheasant's tails, Midges, and Stonefly nymphs work in deeper holes.
- Strip streamers early at Lower Henrys Fork for big brown trout.
Recommended flies
Sparkle MinnowsRusty TrombonesPheasant TailsMidgesStonefly nymphs