Flow
1.9 cfs ↓
Trend
Falling
Observed
19d ago
Hatch Status
Baetis hatch should trigger enthusiastic feeding on both nymphs and dries once the day and water warms.
Conditions
The Big Wood is shaping up for solid early autumn fishing through early October. Flows remain low and clear, so expect to find fish spread across shallow tailouts and riffles. A stealthy approach will pay dividends as cooler water temps push insects and trout into active feeding windows. Baetis hatches should trigger reliable nymph and dry fly fishing, while caddis, ants, and Hecuba patterns round out your options.
Gauges
Live cameras
Big Wood River at Hailey Total Flow
USGS 13139510 · Oct 18, 2026, 5:00 PM
Every 60 min · daylight
Techniques
- When Baetis aren't hatching, fish will take a well-drifted caddis, ant, or Hecuba pattern in riffles, runs, and seams. A small Zebra midge or Baetis nymph as a dropper can be effective.
Recommended flies
BaetisCaddisRed QuillsChubby ChernobylRubber Legged StonesStreamersZebra Midge