FloatETA estimates how long this float actually takes from live discharge at USGS 06043500 (Gallatin near Gallatin Gateway), not a guidebook average. At a typical 800 cfs, a raft drifts about 3.2 mph here. Higher flow speeds you up; skinny water slows you down. Kayaks run faster than the current, tubes slower. Optional fishing adds 35 minutes per mile.
The Gallatin River (Valley) listing covers 9 river miles across 1 access-to-access stretch (Class I–II). Times in the table are typical raft hours at that reference flow. Open the live calculator for today's CFS, sunset take-out, water temperature, and rain/UV at the put-in.
See today's Gallatin River (Valley) float time
Float stretches on the Gallatin River (Valley)
| Put-in → take-out | Miles | Difficulty | Typical raft time | Notes |
|---|---|---|---|---|
| Gallatin Gateway (Axtell Bridge) → Shedd's Bridge | 9 mi | Class I–II | ~2 hr 49 min | Gets bony by August — check the flow before you commit. |
How we time this river
Speed scales with discharge using hydraulic geometry v ∝ Q0.34, calibrated to this gauge. That is why a 1,000 cfs afternoon is a different day than 3,000 cfs runoff. Always scout, wear a PFD, and check Montana FWP boating for closures. Gauge page: USGS 06043500.
Common questions
How long does it take to float Gallatin Gateway (Axtell Bridge) to Shedd's Bridge on the Gallatin River (Valley)?
About 2 hr 49 min in a raft at a typical 800 cfs. Kayaks run a bit faster; tubes run slower. Stopping to fish adds about 35 minutes per mile. Gets bony by August — check the flow before you commit.
What USGS gauge is used for Gallatin River (Valley) float times?
FloatETA uses USGS gauge 06043500 (Gallatin near Gallatin Gateway) for live discharge. Speed is scaled from a reference 800 cfs drift of about 3.2 mph.
Is the Gallatin River (Valley) a good tube float?
Tubes lag the current (we use a 0.72× speed multiplier). On Class I–II stretches tubes can work at moderate flows; skip high water and always wear a PFD.