Ruby River below Ruby Reservoir near Alder, MT

MADISON COUNTY, MT45.2419°N, -112.1112°W Updated 20 hr ago

FLOW RATE

52cfs

GAUGE HT

2.42ft

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

52cfs 22.7% vs avg

Optimal band: 44–60 cfs

PERIOD HIGH

419cfs

PERIOD LOW

41cfs

RUNNABLE

28%

last 1 year in band

Gauge Height

2.42ft

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45.2419, -112.1112

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

Site #06020600·USGS

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