Boiling River At Mammoth,Ynp Realtime Data
BOILING RIVER AT MAMMOTH,YNP
Realtime Data • Report • Conditions
25
Discharge (cfs)
1.2
Gauge Height (ft)
Streamflow discharge was last observed at 25 cfs, and a gauge height of 1.21 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 25 .
Weather today, Tomorrow,
The river is primarily fed by thermal springs and geothermal vents, which contribute to its constant temperature of approximately 86 degrees Fahrenheit. The river flows into the Gardner River, which eventually joins the Yellowstone River. There are no major tributaries or dams on the Boiling River, and its flow remains relatively constant throughout the year due to its geothermal source. The river is only open for swimming during the winter months, as its high temperature in the summer can be dangerous to swimmers. The Boiling River at Mammoth is a fascinating example of the unique hydrology present in Yellowstone National Park.
July 13, 2026
| Elevation | 5,672.0 ft |
| Last Updated | |
| Gage height, ft | 1.21 ft |
| Temperature, water, °C | 47.9 deg C |
| Streamflow, ft³/s | 25.1 ft3/s |
| Percent of Normal | 105% |
| Year Over Year Average | 24 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 34 cfs |
Continue with Snoflo Premium