Waterlands
St. Mary River
USGS · 05017500
ST. MARY RIVER
USGS · 05017500LIVE

St. Mary River near Babb MT

GLACIER COUNTY, MT48.8330°N, -113.4207°W Updated 23 hr ago
FLOW RATE
2,197cfs
Flow Rate Historical Avg
MEDIAN FLOW RATE · 30 DAY
2,197cfs 0.7% vs avg
Optimal band: 1,618–2,190 cfs
PERIOD HIGH
4,156cfs
PERIOD LOW
1,407cfs
RUNNABLE
42%
last 30 day in band
Precipitation History
Your History · St. Mary River near Babb MT

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Station Location

48.8330, -113.4207
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DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #05017500·USGS

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