Flow
1.7 cfs ↓
Trend
Falling
Observed
48d ago
Hatch Status
Red Quill, Baetis, Tricos, flying ants, caddis, and small crane flies with cooler morning temperatures
Conditions
The Big Wood is entering a low, clear water period in early September, requiring a stealthy approach and precise casting. Expect fish to hold in shallow riffles above deeper runs where they can access food and oxygen. Red Quills, Baetis, Tricos, and small crane flies should be active, along with occasional hoppers and caddis. Conditions will demand patience and finesse on every cast.
Gauges
Live cameras
Big Wood River at Hailey Total Flow
USGS 13139510 · Oct 22, 2026, 5:00 PM
Every 60 min · daylight
Techniques
- Don't overlook shallow riffles above deeper runs; fish may be seeking oxygen and food
Recommended flies
TricosCaddisRed QuillsChubby ChernobylRubber Legged StonesStreamers