Gallatin River Above Deer Creek, Near Big Sky
Gallatin River · Rockies · USGS gage 06043120
Coldwater (summer mean 14.1°C — prime coldwater).
Water
n/a
Flow
319 cfs
Air
38°F
Sky
28%
Pressure
30.27 in
Wind
12 mph
Predicted hatches · 2026-11-02
No bugs scoring above the noise floor right now.
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.