Boiling River at Mammoth,YNP
USGS 06190540 · Wyoming · reports discharge (live), gauge height, water temperature
Reading Boiling River at Mammoth,YNP…
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USGS 06190540 · Wyoming · reports discharge (live), gauge height, water temperature
What the agencies suggest
Carry a pocket thermometer to monitor the water temperatureWyoming Game and Fish Department
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 5:15 PM MST · provisional USGS data
Below normal for Nov 5 Steady · 24 h
Discharge, last 7 days: 169 readings from Oct 29, 6:30 PM MDT to Nov 5, 5:15 PM MST; ranging 20.1 to 20.8 ft³/s; latest 20.5 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 5:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 4:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 3:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 2:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 1:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 12:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 11:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 10:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 9:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 8:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 7:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 6:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 5:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 4:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 3:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 2:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 1:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 5, 12:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 11:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 10:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 9:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 8:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 7:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 6:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 5:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 4:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 3:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 2:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 1:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 12:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 11:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 10:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 9:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 8:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 7:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 6:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 5:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 4:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 3:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 2:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 1:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 4, 12:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 11:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 10:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 9:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 8:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 7:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 6:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 5:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 4:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 3:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 2:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 1:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 12:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 11:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 10:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 9:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 8:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 7:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 6:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 5:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 4:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 3:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 2:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 1:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 3, 12:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 11:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 10:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 9:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 8:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 7:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 6:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 5:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 4:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 3:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 2:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 1:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 12:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 11:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 10:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 9:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 8:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 7:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 6:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 5:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 4:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 3:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 2:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 1:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 2, 12:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 11:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 10:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 9:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 8:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 7:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 6:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 5:15 PM MST | 20.8 | 1.12 | 21–27 |
| Nov 1, 4:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 3:15 PM MST | 20.8 | 1.12 | 21–27 |
| Nov 1, 2:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 1:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 12:15 PM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 11:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 10:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 9:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 8:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 7:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 6:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 5:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 4:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 3:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 2:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 1:15 AM MST | 20.5 | 1.11 | 21–27 |
| Nov 1, 1:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Nov 1, 12:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 11:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 10:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 9:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 8:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 7:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 6:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 5:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 4:15 PM MDT | 20.8 | 1.12 | 21–27 |
| Oct 31, 3:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 2:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 1:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 12:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 11:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 10:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 9:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 8:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 7:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 6:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 5:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 4:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 3:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 2:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 1:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 31, 12:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 11:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 10:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 9:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 8:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 7:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 6:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 5:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 4:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 3:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 2:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 1:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 12:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 11:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 10:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 9:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 8:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 7:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 6:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 5:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 4:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 3:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 2:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 1:15 AM MDT | 20.5 | 1.11 | 21–27 |
| Oct 30, 12:15 AM MDT | 20.1 | 1.1 | 21–27 |
| Oct 29, 11:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 29, 10:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 29, 9:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 29, 8:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 29, 7:15 PM MDT | 20.5 | 1.11 | 21–27 |
| Oct 29, 6:30 PM MDT | 20.5 | 1.11 | 21–27 |
Map of USGS gauge 06190540 and the river around it
Where Boiling River at Mammoth,YNP sits.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer: the trout lines Wyoming Game and Fish uses are 65°F, 68°F and 70°F.
Species list not on file for this gauge. Check the Wyoming Game and Fish Department: Wyoming fish stocking report · Wyoming fishing regulations.
Normal for Nov 5: 21–27 ft³/s (middle half of 30 years of record). Now: 20.5 ft³/s, below normal.
Below normal for this date. 20.5 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 30 years of record (1989–2026): 10th 20, 25th 21, median 24, 75th 27, 90th 27 ft³/s.
Daily means on record for Nov 5: lowest 19 ft³/s, highest 30 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (+0% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
NWS observed 1.11 ft stage, 22 ft³/s at Nov 5, 5:15 PM MST (NWS gauge BRMW4; its stage datum can differ from the USGS gauge height).
NWS has not set flood categories for this gauge.
Forecasts are not available. Only observed stages are available for this point.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 6:24 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.