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🌊 Gallatin River · Class III–IV

Is Gallatin (House Rock / Mad Mile) running?

Flow now
376 cfs
→ steady vs. 24 hours ago

Reading from Nov 4, 3:00 PM MT. Site data as of Nov 4, 2026, 4:04 PM MT.

Status
Low
Off season (commercial)
Runnable range: 450–4,000 cfs
330395460Thu 29Fri 30Sat 31Sun 1Mon 2Tue 3Wed 4runnable range

Last 7 days (cfs), Mountain time. Low 325 cfs, high 465 cfs.

StatusLow
Off season (commercial)
RiverGallatin River
SectionGreek Creek to Forest Service take-out
ClassIII–IV
Nearest townBig Sky, Montana
Runnable range450 cfs to 4,000 cfs
Low 450 cfs · medium from 900 cfs · high from 2,000 cfs · max 4,000 cfs
Source: American Whitewater, on the same gauge shown here. Checked 2026-11-04.
Commercial seasonMay–Sep (typical outfitter season)
Off season (commercial)
GaugeGallatin River near Gallatin Gateway, MT (USGS 06043500)
More infoAmerican Whitewater river page

Flows are informational, not a safety call. Gauge readings can be delayed, provisional, or wrong, and a gauge may be miles from the run. Rivers change fast. Check with a local outfitter or the managing agency (BLM, USFS, NPS, dam operator) before you go.

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