August 6, 2026

Henrys Fork of the Snake River, Box Canyon to Riverside

Current conditions for Henrys Fork of the Snake River, Box Canyon to Riverside · Map, access and gauges

Flow

693 cfs

Trend

Steady

Observed

7d ago

Hatch Status

Caddis, PMDs, Gray Drake spinners, Tricos, and Callibaetis present

Conditions

Flows have settled at 693 cfs as of August 26, down from 1020 cfs earlier in the month—better wading and easier access across the reach. Box Canyon is fishing well with Golden Stones and Gray Drakes active on the surface. Through the Ranch water, focus on the middle section and below Osborne Bridge; skip the upper Ranch and water behind the shop. Caddis, PMDs, Gray Drake spinners, Tricos, and Callibaetis are all on the water, and Mormon Crickets are driving solid afternoon action.

Gauges

Techniques

  • Best rising fish in middle of Ranch and below Osborne Bridge; fish early around 8am and last hour before dark
  • Fish on creeks and springs; slow-strip Leeches, Renegades, PTs, Scuds, Damsel Nymphs or bob Chironomids under indicator

Recommended flies

PerdigonsPheasant TailsZebra MidgesMic DropsFrenchiesStreamersAntsBeetlesHoppers

Access

Box Canyon remains a solid option. In the Ranch water, focus on the middle section and areas below Osborne Bridge; upper Ranch and water immediately behind the shop are slower.