Ruby River above Ruby Reservoir near Alder, MT

MADISON COUNTY, MT45.1923°N, -112.1428°W Updated 20 hr ago

FLOW RATE

106cfs

GAUGE HT

2.94ft

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

106cfs 27.9% vs avg

Optimal band: 79–107 cfs

PERIOD HIGH

126cfs

PERIOD LOW

84cfs

RUNNABLE

87%

last 30 day in band

Gauge Height

2.94ft

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45.1923, -112.1428

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DATA · USGS · NOAA · NWSUPDATED 2026-10-16 00:00 UTC

Site #06019500·USGS

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