MEDIAN FLOW RATE · 30 DAY
40cfs 10.0% vs avg
Optimal band: 37–49 cfs
PERIOD HIGH
74cfs
PERIOD LOW
38cfs
RUNNABLE
84%
last 30 day in band
Gauge Height
2.45ft
Water Temperature
44.8°F
Weather Map
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Your History · Firehole River at Old Faithful, WY
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Station Location
44.4593, -110.8223Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-11-09 00:00 UTC
Site #06036805·USGS
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