Firehole River at Old Faithful, YNP
USGSWyoming (44.45966, -110.82243) · View on map
Current reading
37.7 CFS
Gauge height: 2.43 FT
Read about 1 hour ago · Oct 21, 2026 8:00 AM MDT
Flow history — last 6 days
No readings recorded in the last 6 days.
Runs on this gauge
No runs currently read this gauge.