St. Mary Canal at St. Mary Crossing near Babb MT

MONTANA48.9470°N, -113.3753°W Updated 15 hr ago

FLOW RATE

610cfs

GAUGE HT

23.59ft

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

610cfs 61.2% vs avg

Optimal band: 517–699 cfs

PERIOD HIGH

616cfs

PERIOD LOW

594cfs

RUNNABLE

100%

last 30 day in band

Gauge Height

23.59ft

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48.9470, -113.3753

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DATA · USGS · NOAA · NWSUPDATED 2026-09-01 00:00 UTC

Site #05018500·USGS

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